Environment-friendly cold-mixing recycled emulsified asphalt production device and production process

Abstract

The invention belongs to the technical field of recycled asphalt production, and particularly relates to an environment-friendly cold-mixing recycled emulsified asphalt production device and a production process, the environment-friendly cold-mixing recycled emulsified asphalt production device comprises a crusher, a screening assembly and an emulsified asphalt stirrer; the screening assembly comprises a screening box, a vibration base is fixed to the bottom of the screening box, a multi-stage screening mechanism is arranged in the screening box and comprises a fixing frame, a screen is installed in the middle of the fixing frame, and a dredging assembly is arranged at the bottom of the multi-stage screening mechanism and used for dredging the screen. The top of the screening box is provided with a driving assembly used for driving the dredging assembly to move. Through the arrangement of the driving assembly and the dredging assembly, the screen is cleaned, and it is avoided that fragments block screen holes, and follow-up use of the screen is affected; and fragments in the meshes of the screen are blown out by high-speed airflow, direct contact with the screen is avoided, abrasion to the screen can be reduced, and the service life of the screen is prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of recycled asphalt production, specifically an environmentally friendly cold-mixed recycled emulsified asphalt production device and process. BACKGROUND

[0002] The environmentally friendly cold-mixed recycled emulsified asphalt production process is a green technology that recycles waste asphalt materials and processes them through regeneration and emulsification for road construction or repair. This process mainly uses cold-mixing to process recycled asphalt, avoiding energy consumption and environmental pollution in the production process of high-temperature asphalt, and has significant economic benefits and environmental friendliness. The production process of cold-mixed recycled emulsified asphalt usually includes recycling, crushing, screening, and emulsification of waste asphalt, which can effectively utilize waste road asphalt, reduce resource waste, and reduce construction costs, and is of great significance to sustainable development. However, in the existing environmentally friendly cold-mixed recycled emulsified asphalt production process, the screening process of waste asphalt materials still faces some technical bottlenecks. Specifically, the screening equipment often has difficulty in balancing the reliability and durability of the screen cleaning when efficiently separating waste asphalt materials of different particle sizes. During the screening process, asphalt concrete materials and other particulate matter can easily clog the screen, reducing the screening efficiency and increasing the maintenance cost of the equipment.

[0003] Currently, patent CN119035074B discloses a screening device for asphalt concrete recycling material, which includes a screening box, a vibrating base, and multiple equidistantly distributed screens. A cleaning assembly is used to clean the screens. The cleaning assembly drives the hard brush to move up and down through a driving mechanism, thereby ejecting the asphalt concrete particles clogging in the screen holes, achieving the purpose of unblocking the screens, avoiding further jamming of the screen holes, and avoiding deformation of the screen holes.

[0004] Although this technology can improve the screen clogging problem and improve the screening efficiency in the short term, it also has the following defects: repeated friction and extrusion of the hard brush and the metal screen can cause bending and breaking of the bristles, thereby shortening the service life of the hard brush. In addition, the cleaning effect of the hard brush and the durability of the screen may be affected in the long term, increasing the frequency and cost of maintenance. Therefore, the present application provides an environmentally friendly cold-mixed recycled emulsified asphalt production device and process. SUMMARY

[0005] To make up for the deficiencies of the prior art and solve at least one technical problem raised in the background.

[0006] The technical solution adopted by the present application to solve its technical problems is: an environmentally friendly cold-mixed recycled emulsified asphalt production device according to the present application, comprising a pulverizer, a screening assembly, and an emulsified asphalt mixer. The screening assembly comprises a screening box, a vibrating base is fixed at the bottom of the screening box, a multi-stage screening mechanism is arranged in the screening box, the multi-stage screening mechanism comprises a fixed frame, a screen is installed in the middle of the fixed frame, a discharge port corresponding to the multi-stage screening mechanism is arranged on the side wall of the screening box, a dredging assembly is arranged at the bottom of the multi-stage screening mechanism and is used for dredging the screen, and a driving assembly for driving the dredging assembly to move is arranged at the top of the screening box. The dredging assembly comprises a horizontal pipe and a fan, the horizontal pipe is arranged below the filter screen, a plurality of air outlets are uniformly arranged at the top of the horizontal pipe, a pipe body two is fixed on the air outlet of the fan, a hose two is fixed on the pipe body two, the end of the horizontal pipe is connected with the hose two through a spring pipe, a pipe body one is fixed on the two sides of the screening box, a dust suction pipe is fixed on the pipe body one, the dust suction pipe is arranged in the discharge port, a connecting box is fixedly connected to the air inlet of the fan, the pipe body one and the connecting box are communicated through a hose one, and a dust filtering piece is arranged in the connecting box.

[0007] Preferably, the driving assembly comprises a side plate, the side walls of adjacent two fixed frames are fixedly connected through the side plate, a sliding groove is formed in the top of the side plate, a sliding block is sleeved on each end of the horizontal pipe, the sliding blocks are limitingly and slidably arranged in the sliding groove, a screw rod is symmetrically installed on the top of the screening box through a bearing seat, the screw rods on the two sides are drivingly connected through a transmission belt and a transmission wheel, a motor for driving the screw rods to rotate is fixed on the side wall of the screening box, an activity block is threadedly connected to each screw rod, the sliding blocks arranged below the multi-stage screening mechanisms are fixed together through a connecting rod, a driving rod is fixed on the top of the uppermost sliding block, the driving rod penetrates a through groove formed in the top plate of the screening box, and the top end of the driving rod slidably penetrates a sliding hole formed in the activity block.

[0008] Preferably, cavities are arranged between the two sides of the fixed frame and the inner walls of the screening box, a plurality of protrusions are uniformly arranged on the inner walls of the two sides of the screening box, the protrusions on the two sides are alternately distributed, the two ends of the horizontal pipe are provided with round heads, a stop ring is fixed on each end of the horizontal pipe, and a spring one is arranged between the stop ring and the sliding block.

[0009] Preferably, a fixed shaft is fixed on the side wall of the horizontal pipe, a tooth rod is rotatably installed at the end of the fixed shaft, a flexible strip is fixed on the end of the tooth rod, a rack is engaged with the tooth rod, an activity rod is fixed between the sliding blocks on the two sides, and the rack is fixed to the bottom of the activity rod.

[0010] Preferably, an insertion groove matched with the dust filtering piece is formed in the top of each end of the connecting box, the dust filtering piece comprises an installation frame one, a filter screen is installed on the installation frame one, hollow balls are arranged on the side edges of the filter screen, and the hollow balls are fixedly connected with the inner walls of the connecting box through elastic ropes.

[0011] Preferably, detachable end caps are mounted on both ends of the connecting box, the inner wall bottom of the end cap is fixed with a receiving plate, the side edge of the mounting frame one is embeddedly movably mounted with a mounting frame two, the filter screen is fixed in the middle of the mounting frame two, the side wall of the mounting frame two away from the receiving plate is fixed with a guide rod on the upper and lower sides, the side wall of the mounting frame one is provided with a sliding cavity in the corresponding position, the guide rod is slidably arranged in the sliding cavity, and the sliding cavity is provided with a spring two for returning the guide rod.

[0012] Preferably, the side edge of the mounting frame two is fixed with a rectangular frame, and the rectangular frame is slidably arranged in the middle of the mounting frame one.

[0013] Preferably, a collecting box is slidably arranged at the lower part of the screening box.

[0014] Preferably, the top of the bearing seat on both sides is fixed with a baffle, and the baffle is attached to the upper end face of the movable block.

[0015] An environment-friendly cold-mixed recycled emulsified asphalt production process, which adopts the environment-friendly cold-mixed recycled emulsified asphalt production device, comprises the following steps: S1, adding waste asphalt materials into a pulverizer to crush them; S2, adding the crushed asphalt pieces into a screening box, driving the screening box to continuously vibrate through a vibrating base, and rapidly screening the asphalt pieces through a multi-stage screening mechanism to remove impurities; S3, collecting the screened asphalt pieces from a discharge port, adding the asphalt pieces into an emulsified asphalt mixer, and adding emulsifiers and water to mix and form emulsified asphalt; S4, in step S2, after the screening of the asphalt pieces is completed, the driving assembly and the dredging assembly are started, the fan in the dredging assembly inhales air and blows out high-speed airflow through the pipe body two, the spring pipe and the cross pipe, and the driving assembly drives the cross pipe to reciprocatingly move to clean the screen; S5, in step S4, during the process that the fan inhales air, dust floating in the air is synchronously absorbed through the dust suction pipe, and the dust is collected by using the dust filtering element.

[0016] The beneficial effects of the present application are as follows: 1. The environmental protection cold-mixed recycled emulsified asphalt production device and production process, through the driving assembly and the dredging assembly, the screen can be cleaned after the asphalt block screening work is completed, air is sucked into the fan during use, the air enters the fan through the dust collection pipe, the pipe body one, the hose one and the connecting box, and then is blown out in the form of high-speed airflow through the pipe body two, the spring pipe and the horizontal pipe, the horizontal pipe is driven to reciprocate below the screen through the driving assembly, the high-speed airflow is blown on the screen from bottom to top, so that the screen is cleaned; the high-speed airflow can blow up the fragments stuck in the screen mesh, so as to avoid that the fragments block the screen mesh and affect the subsequent use of the screen; the fragments in the screen mesh are blown out by the high-speed airflow, so as to avoid that the horizontal pipe directly contacts with the screen, the wear of the screen can be reduced, and the service life of the screen can be prolonged; in addition, dust impurities floating in the air are synchronously absorbed through the dust collection pipe, and the dust in the air can be filtered through the dust filtering element arranged in the connecting box, so that the environment can be prevented from being polluted.

[0017] 2. The environmental protection cold-mixed recycled emulsified asphalt production device and production process, through the driving assembly, the horizontal pipe moves below the screen, the two ends of the horizontal pipe are in contact with the two side protrusions in turn, when the horizontal pipe passes through the protrusion, the blocking ring extrudes the spring one, and then the spring one drives the horizontal pipe to reset, so that the horizontal pipe moves left and right reciprocatingly, the high-speed airflow sprayed in the air outlet can cover a larger area, and the dead angle problem of the fixed blowing can be avoided.

[0018] 3. The environmental protection cold-mixed recycled emulsified asphalt production device and production process, during the left and right reciprocating movement of the horizontal pipe, the installation shaft and the toothed rod are synchronously driven to move, so that the toothed rod rolls along the rack, and then drives the flexible strip to rotate, the flexible strip can be a silica gel strip, the bottom of the screen is struck by the flexible strip, so that the screen vibrates, and the fragments are further separated from the screen mesh. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described below with reference to the drawings.

[0020] Figure 1 is a perspective view of the screening box of the application; Figure 2 is a partial sectional view of the screening box of the application; Figure 3 is a partial structural sectional view of the application; Figure 4 is a structural schematic view of the dredging assembly of the application; Figure 5 is Figure 4 is an enlarged view of A in Figure 6 is another angle view of the dredging assembly of the application; Figure 7This is a schematic diagram of the multi-stage screening mechanism of the present invention; Figure 8 This is a partial cross-sectional view of the connecting box of the present invention; Figure 9 yes Figure 8 Enlarged view at point B in the middle; Figure 10 This is a process flow diagram of the present invention.

[0021] In the diagram: 1. Screening box; 2. Vibrating base; 3. Discharge port; 4. Pipe body 1; 5. Suction pipe; 6. Collection box; 7. Hose 1; 8. Connecting box; 9. Fan; 10. Dust filter; 11. Fixing frame; 12. Side plate; 13. Slide groove; 14. Motor; 15. Through groove; 16. Movable block; 17. Drive rod; 18. Baffle; 19. Bearing seat; 20. Lead screw; 21. Screen; 22. Horizontal pipe; 23. Air outlet; 24. Fixed shaft; 25. Gear rack; 26. Gear rack; 27. Flexible strip; 28. Slider; 29. ​​Connecting rod; 30. Bourdon tube; 31. Retaining ring; 32. Round head; 33. Spring 1; 34. Protrusion; 35. Tube body 2; 36. Flexible hose 2; 37. End cap; 38. Receiving plate; 39. Elastic rope; 40. Hollow ball; 41. Mounting frame 1; 42. Mounting frame 2; 43. Filter screen; 44. Rectangular frame; 45. Guide rod; 46. Spring 2; 47. Movable rod. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Example 1: As Figures 1 to 9 As shown in the embodiment of the present invention, an environmentally friendly cold-mix recycled emulsified asphalt production device includes a crusher, a screening component, and an emulsified asphalt mixer. The screening assembly includes a screening box 1, with a vibrating base 2 fixed at the bottom of the screening box 1 (the vibrating base 2 uses existing publicly available equipment, and its internal structure and working principle will not be described in detail here). The screening box 1 is equipped with a multi-stage screening mechanism, which includes a fixed frame 11. A screen 21 is installed in the middle of the fixed frame 11. The side wall of the screening box 1 is provided with a discharge port 3 corresponding to the multi-stage screening mechanism. The bottom of the multi-stage screening mechanism is provided with a clearing component for clearing the screen 21. The top of the screening box 1 is provided with a driving component for driving the movement of the clearing component. The dredging assembly comprises a cross pipe 22 and a fan 9, the cross pipe 22 is arranged below the filter screen 43, a plurality of air outlets 23 are uniformly arranged on the top of the cross pipe 22, a pipe body two 35 is fixed on the air outlet of the fan 9, a hose two 36 is fixed on the pipe body two 35, the end of the cross pipe 22 is connected with the hose two 36 through a spring pipe 30, a pipe body one 4 is symmetrically fixed on the two sides of the screening box 1, a dust collection pipe 5 is arranged in the discharge port 3, a connecting box 8 is fixedly connected on the air inlet of the fan 9, the pipe body one 4 and the connecting box 8 are communicated through a hose one 7, and a dust filtering piece 10 is arranged in the connecting box 8; In work, the waste asphalt material is added into the crusher, and then the crushed asphalt pieces are added into the screening box 1, the screening box 1 is continuously vibrated by the vibrating base 2, the multi-stage screening mechanism is used to quickly screen the asphalt pieces to remove impurities (such as gravel, dust, etc.), the hole diameters of the screen meshes 21 of the multi-stage screening mechanism gradually decrease from top to bottom, and the specific hole diameters can be adjusted according to actual use; then the screened asphalt pieces are collected from the discharge port 3, the asphalt pieces are added into the emulsified asphalt mixer, and appropriate amount of emulsifier and water are added, and the emulsified asphalt is formed by stirring and mixing; After the screening of the asphalt pieces is completed, the driving assembly and the dredging assembly are started, the fan 9 inhales air when working, the air enters the fan 9 through the dust collection pipe 5, the pipe body one 4, the hose one 7 and the connecting box 8, and then high-speed airflow is blown out through the pipe body two 35, the spring pipe 30 and the cross pipe 22, the spring pipe 30 can be elongated and reset to meet the movement needs of the cross pipe 22, the cross pipe 22 is reciprocated below the screen mesh 21 by the driving assembly, and the high-speed airflow is blown on the screen mesh 21 from bottom to top to clean the screen mesh 21; the high-speed airflow can blow up the pieces stuck in the screen mesh 21, so that the pieces do not block the screen mesh 21, and the subsequent use of the screen mesh 21 is not affected; the pieces in the screen mesh 21 are blown out by the high-speed airflow, the cross pipe 22 does not directly contact the screen mesh 21, the wear of the screen mesh 21 is reduced, and the service life of the screen mesh 21 is prolonged; In addition, the dust collection pipes 5 are arranged on the two sides of the discharge port 3, dust and impurities floating in the air can be synchronously absorbed during the air suction process, and the dust filtering piece 10 arranged in the connecting box 8 can filter the dust in the air, so that the environment is not polluted.

[0024] The driving assembly comprises side plates 12, two adjacent fixed frames 11 are fixedly connected through the side plates 12 between the side walls of the fixed frames 11, the top of the side plate 12 is provided with a sliding groove 13, the both ends of the horizontal pipe 22 are respectively provided with sliding blocks 28, the sliding blocks 28 are limitingly and slidably arranged in the sliding groove 13, the bottom of the fixed frame 11 is provided with a limiting groove, the top of the sliding block 28 is fixedly provided with a limiting block, the limiting block is slidably arranged in the limiting groove, so as to limit the installation of the sliding block 28 in the sliding groove 13, the top of the screening box 1 is symmetrically provided with lead screws 20 through bearing seats 19 on both sides, the lead screws 20 on both sides are drivingly connected through transmission belts and transmission wheels, the side wall of the screening box 1 is fixedly provided with a motor 14 for driving the lead screw 20 to rotate, the lead screws 20 on both sides are respectively threadedly connected with movable blocks 16, the sliding blocks 28 arranged below the plurality of multi-stage screening mechanisms are fixedly connected through connecting rods 29, the top of the uppermost sliding block 28 is fixedly provided with a driving rod 17, the top end of the driving rod 17 penetrates a through groove 15 formed in the top plate of the screening box 1, and the top end of the driving rod 17 slidably penetrates a sliding hole formed in the movable block 16; When the driving assembly needs to be used to drive the dredging assembly to move, the motor 14 is started, the motor 14 drives one side of the lead screw 20 to rotate, and the other side of the lead screw 20 is synchronously driven through the transmission belt and the transmission wheel structure, the lead screws 20 on both sides synchronously drive the corresponding movable blocks 16 to move, the movable blocks 16 drive the driving rod 17 and the sliding block 28 to move, and the sliding block 28 drives the horizontal pipe 22 to move, so as to clean the screen 21. The fixed frame 11 and the screen 21 are fixedly arranged in the screening box 1, so as to facilitate discharging, the sliding groove 13 is parallel to the fixed frame, and the driving rod 17 can move up and down along the sliding hole formed in the movable block 16 during the movement of the sliding block 28 along the sliding groove 13, so that the horizontal pipe 22 can always be attached to the lower side of the screen 21, and the high-speed airflow can be directly sprayed at the bottom of the screen 21. A clamping groove is formed in the side wall of the horizontal pipe 22, and a clamping block is arranged on the inner wall of the middle hole of the sliding block 28, the clamping block is clamped in the clamping groove, so as to limit the horizontal pipe 22, and the air outlet hole 23 on the horizontal pipe 22 is perpendicular to the screen 21, so that the high-speed airflow can directly pass through the screen 21. Further, based on the above-mentioned dust collection pipe 5, a plurality of dust collection pipes 5 are uniformly arranged on both sides of the through groove 15 on the top of the screening box 1, and the dust collection pipes 5 are also collected on the pipe body 4, and the dust collection pipes 5 can simultaneously collect the dust leaked from the through groove 15; in addition, the dust collection pipes 5 can be used during the screening process, at this time, the driving assembly does not work, the horizontal pipe 22 is located at the highest end of the screen 21, and does not affect the screening work of the screen 21, and the dust leaked during the screening process can be collected through the dust collection pipes 5 arranged on the side of the discharge port 3 and the through groove 15.

[0025] The two sides of the fixed frame 11 are provided with cavities between the inner walls of the screening box 1, a plurality of protrusions 34 are uniformly distributed on the inner walls of the two sides of the screening box 1, the protrusions 34 on the two sides are alternately distributed, the two ends of the horizontal pipe 22 are provided with round heads 32, the horizontal pipe 22 is fixed with a blocking ring 31 at each end, and a spring 33 is arranged between the blocking ring 31 and the sliding block 28; during operation, the driving assembly drives the horizontal pipe 22 to move below the screen 21, the two ends of the horizontal pipe 22 sequentially contact the protrusions 34 on the two sides, when the horizontal pipe 22 passes through the protrusions 34, the blocking ring 31 extrudes the spring 33, and then the spring 33 pushes the horizontal pipe 22 to reset, so that the horizontal pipe 22 reciprocates left and right, the high-speed airflow sprayed from the air outlet 23 can cover a larger area, and the dead angle problem of fixed blowing can be avoided.

[0026] The side wall of the horizontal pipe 22 is fixed with a fixed shaft 24, the end of the fixed shaft 24 is rotatably installed with a tooth rod 25, the end of the tooth rod 25 is fixed with a flexible strip 27, the tooth rod 25 is meshed with a rack 26 above, and the two sliding blocks 28 are fixed with a movable rod 47 therebetween, and the rack 26 is fixed to the bottom of the movable rod 47. During operation, the horizontal pipe 22 reciprocates left and right, simultaneously driving the installation shaft and the tooth rod 25 to move, so that the tooth rod 25 rolls along the rack 26, and then drives the flexible strip 27 to rotate. The flexible strip 27 can be a silica gel strip, which is used to knock the bottom of the screen 21 to vibrate the screen 21, so that the broken pieces are separated from the screen holes of the screen 21.

[0027] The connecting box 8 is provided with an insertion slot adapted to the dust filtering element 10 at the top of each end, the dust filtering element 10 comprises a mounting frame 41, the mounting frame 41 is installed with a filter screen 43, the filter screen 43 is provided with a hollow ball 40 at the side, and the hollow ball 40 is fixedly connected with the inner wall of the connecting box 8 through elastic ropes 39 on the upper and lower sides. During operation, when the fan 9 generates high-speed airflow, the airflow passes through the filter screen 43 and blows the hollow ball 40 away from the filter screen 43, at this time, the elastic rope 39 is stretched, when the fan 9 stops working, the elastic rope 39 rebounds to make the hollow ball 40 move in the opposite direction and impact on the filter screen 43, so as to shake off the dust attached to the filter screen 43, which can automatically clean the filter screen 43 and keep the filter screen 43 in good dust filtering effect.

[0028] The two ends of the connecting box 8 are detachably provided with end covers 37, the inner wall bottom of the end cover 37 is fixedly provided with a receiving plate 38, the side edge of the mounting frame one 41 is inlaidly and movably provided with a mounting frame two 42, the filter screen 43 is fixed in the middle of the mounting frame two 42, the side wall of the mounting frame two 42 away from the receiving plate 38 is fixed with a guide rod 45 on the upper and lower sides, respectively, the side wall of the mounting frame one 41 is provided with a sliding cavity corresponding to the position, the guide rod 45 is slidably arranged in the sliding cavity, and the sliding cavity is provided with a spring two 46 for resetting the guide rod 45. In operation, the outer contour of the mounting frame two 42 is attached to the inner wall of the connecting box 8, when the hollow ball 40 hits the filter screen 43, the mounting frame two 42 and the filter screen 43 continue to move forward under the action of inertia, so that the mounting frame two 42 can move to the receiving plate 38, so as to push the dust accumulated on the receiving plate 38 away from the filter element through the mounting frame two 42, avoiding the accumulation of dust for a long time, affecting the use of the filter screen 43; the spring two 46 rebounds to make the mounting frame and the filter screen 43 automatically reset, and collide with the mounting frame one 41 during resetting to produce vibration, further shaking off the dust attached to the filter screen 43; In addition, the end cover 37 is designed to be detachable, so that the end cover 37 and the receiving plate 38 can be quickly disassembled for cleaning the dust inside the connecting box 8; the dust filtering element 10 can also be pulled out of the slot, facilitating the replacement and maintenance of the filter screen 43.

[0029] The side edge of the mounting frame two 42 is fixedly provided with a rectangular frame 44, which is slidably arranged in the middle of the mounting frame one 41; in operation, the rectangular frame 44 is always located in the middle of the mounting frame one 41 during the movement of the mounting frame one 41, so as to close the hole in the middle of the mounting frame one 41, avoiding dust entering the middle position of the connecting box 8.

[0030] The screening box 1 is slidably provided with a collecting box 6 at the lower part; in operation, the collecting box 6 can collect the gravel and impurities screened by the multi-stage screening mechanism.

[0031] Example two: as Figure 2 As shown in the figure, another embodiment of the present application is: the top of the bearing seat 19 on both sides is fixedly provided with a baffle 18, which is attached to the upper end face of the movable block 16; in operation, the baffle 18 can limit the movement of the movable block 16, avoiding the rotation of the movable block 16, so that the movable block 16 can only realize linear motion with the lead screw 20; in addition, the baffle 18 can protect the lead screw 20, avoiding damage caused by external impact.

[0032] As shown in the figure, another embodiment of the present application is: the top of the bearing seat 19 on both sides is fixedly provided with a baffle 18, which is attached to the upper end face of the movable block 16; in operation, the baffle 18 can limit the movement of the movable block 16, avoiding the rotation of the movable block 16, so that the movable block 16 can only realize linear motion with the lead screw 20; in addition, the baffle 18 can protect the lead screw 20, avoiding damage caused by external impact. Figure 10 An environment-friendly cold-mixed recycled emulsified asphalt production process, which adopts the above-mentioned environment-friendly cold-mixed recycled emulsified asphalt production device, comprises the following steps: S1, the waste asphalt material is added into the crusher, and the waste asphalt material is crushed; S2, the crushed asphalt pieces are added into the screening box 1, the screening box 1 is continuously vibrated by the vibration base 2, the multi-stage screening mechanism is used for rapidly screening the asphalt pieces, and impurities are removed; S3, the screened asphalt pieces are collected from the discharge port 3, the asphalt pieces are added into the emulsified asphalt mixer, the emulsifier and water are added, and the emulsified asphalt is formed by stirring and mixing; S4, in step S2, after the screening work of the asphalt pieces is completed, the driving assembly and the dredging assembly are started, the fan 9 in the dredging assembly inhales air, and high-speed airflow is blown out through the pipe body two 35, the spring pipe 30 and the transverse pipe 22, and the driving assembly drives the transverse pipe 22 to reciprocatingly move to clean the screen 21; S5, in step S4, during the process that the fan 9 inhales air, dust floating is synchronously absorbed through the dust suction pipe 5, and the dust is collected by using the dust filtering piece 10.

[0033] The above front, rear, left, right, top and bottom are based on the drawings of the specification Figure 1 As a standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and the like.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application.

[0035] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly cold-mix recycled emulsified asphalt production device, characterized in that: Includes a crusher, screening components, and an emulsified asphalt mixer; The screening assembly includes a screening box (1), a vibrating base (2) fixed at the bottom of the screening box (1), a multi-stage screening mechanism inside the screening box (1), the multi-stage screening mechanism includes a fixed frame (11), a screen (21) installed in the middle of the fixed frame (11), a discharge port (3) corresponding to the multi-stage screening mechanism is provided on the side wall of the screening box (1), a clearing component is provided at the bottom of the multi-stage screening mechanism for clearing the screen (21), and a driving component is provided at the top of the screening box (1) for driving the movement of the clearing component; The unblocking assembly includes a horizontal pipe (22) and a blower (9). The horizontal pipe (22) is fitted below the filter screen (43). Multiple air outlets (23) are evenly distributed on the top of the horizontal pipe (22). A second pipe body (35) is fixed on the air outlet of the blower (9). A second hose (36) is fixed on the second pipe body (35). The end of the horizontal pipe (22) is connected to the second hose (36) through a spring tube (30). A first pipe body (4) is symmetrically fixed on both sides of the screening box (1). A suction pipe (5) is fixed on the first pipe body (4). The suction pipe (5) is set in the discharge port (3). A connecting box (8) is fixed on the air inlet of the blower (9). The first pipe body (4) and the connecting box (8) are connected by a first hose (7). A dust filter (10) is set inside the connecting box (8).

2. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 1, characterized in that: The drive assembly includes a side plate (12), and the side walls of two adjacent fixed frames (11) are fixedly connected by the side plate (12). A groove (13) is provided on the top of the side plate (12). Slider blocks (28) are respectively fitted at both ends of the horizontal tube (22). The sliders (28) are limited and slidably arranged in the groove (13). Screws (20) are symmetrically installed on both sides of the top of the screening box (1) through bearing seats (19). The screws (20) on both sides are connected by a transmission belt and a transmission wheel. A motor (14) for driving the lead screw (20) to rotate is fixed on the side wall. Movable blocks (16) are threadedly connected to the lead screws (20) on both sides. Multiple sliders (28) set below the multi-stage screening mechanism are fixed together by connecting rods (29). A driving rod (17) is fixed on the top of the uppermost slider (28). The top of the driving rod (17) passes through the through slot (15) opened in the top plate of the screening box (1), and the top of the driving rod (17) slides through the movable block (16) with a sliding hole.

3. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 2, characterized in that: A cavity is provided between the two sides of the fixed frame (11) and the inner wall of the screening box (1). Multiple protrusions (34) are evenly distributed on the inner walls of both sides of the screening box (1). The protrusions (34) on both sides are alternately distributed. Both ends of the horizontal tube (22) are set as round heads (32). A retaining ring (31) is fixed at both ends of the horizontal tube (22). A spring (33) is installed between the retaining ring (31) and the slider (28).

4. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 3, characterized in that: A fixed shaft (24) is fixed on the side wall of the horizontal tube (22). A rack (25) is rotatably mounted on the end of the fixed shaft (24). A flexible strip (27) is fixed on the end of the rack (25). A rack (26) meshes above the rack (25). A movable rod (47) is fixed between the sliders (28) on both sides. The rack (26) is fixed to the bottom of the movable rod (47).

5. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 4, characterized in that: The top of both ends of the connecting box (8) are respectively provided with slots that are compatible with the dust filter (10). The dust filter (10) includes a mounting frame (41), on which a filter screen (43) is installed. A hollow ball (40) is provided on the side of the filter screen (43). The upper and lower sides of the hollow ball (40) are respectively fixedly connected to the inner wall of the connecting box (8) by elastic ropes (39).

6. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 5, characterized in that: The two ends of the connecting box (8) are detachably fitted with end caps (37). The bottom of the inner wall of the end cap (37) is fixed with a receiving plate (38). The side of the first mounting frame (41) is inlaid with a second mounting frame (42). The filter screen (43) is fixed in the middle of the second mounting frame (42). The upper and lower sides of the side wall of the second mounting frame (42) away from the receiving plate (38) are respectively fixed with guide rods (45). The side wall of the first mounting frame (41) is provided with a sliding cavity at the corresponding position. The guide rod (45) is slidably disposed inside the sliding cavity. The second spring (46) is installed inside the sliding cavity to reset the guide rod (45).

7. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 6, characterized in that: A rectangular frame (44) is fixed to the side of the second mounting frame (42), and the rectangular frame (44) is slidably disposed in the middle of the first mounting frame (41).

8. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 7, characterized in that: The screening box (1) has a collection box (6) that is slidably installed at the bottom.

9. The environmentally friendly cold-mix recycled emulsified asphalt production device according to claim 8, characterized in that: The top of the bearing seats (19) on both sides is fixed with a baffle (18), and the baffle (18) is in contact with the upper end surface of the movable block (16).

10. An environmentally friendly cold-mix recycled emulsified asphalt production process, wherein the process employs the environmentally friendly cold-mix recycled emulsified asphalt production apparatus as described in claim 9, characterized in that: Includes the following steps: S1. Add the waste asphalt material to the crusher and crush it; S2. Add the crushed asphalt fragments into the screening box (1), drive the screening box (1) to vibrate continuously through the vibrating base (2), and use the multi-stage screening mechanism to quickly screen the asphalt fragments to remove impurities. S3. Collect the screened asphalt fragments from the discharge port (3), add the asphalt fragments to the emulsified asphalt mixer, and add emulsifier and water to mix and form emulsified asphalt. S4. In step S2, after the asphalt fragment screening is completed, the drive assembly and the unblocking assembly are started. The blower (9) in the unblocking assembly draws in air and blows out a high-speed airflow through the second pipe (35), the spring pipe (30) and the horizontal pipe (22). The drive assembly drives the horizontal pipe (22) to move back and forth to clean the screen (21). In steps S5 and S4, during the process of the fan (9) drawing in air, the floating dust is simultaneously absorbed through the dust suction pipe (5), and the dust is collected using the dust filter (10).

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