A fiber separation device for measuring asphalt mixture gradation

Abstract

The embodiment of the present invention provides a fiber separation device for measuring the gradation of asphalt mixture, which relates to the field of asphalt extraction equipment. It includes: a base, a bracket part, a separation mechanism, a spray mechanism, a screening part, a guide plate and a centrifugal part, the guide plate is installed on the bracket part, the separation mechanism is installed on the bracket part, the screening part is installed between the separation mechanism and the guide plate, and the spray mechanism is installed on the top of the separation mechanism; the separation mechanism includes a fixed frame, a through port, a separation cover, a movable plate, a slot and a top block. The present invention can realize the dissolution, separation and falling of asphalt, fiber and aggregate, and prevent large pieces of asphalt from passing through, so as to facilitate the acquisition of accurate weight data; the screening level and number of times of the equipment can also be adjusted according to actual conditions; at the same time, the position where the asphalt of the equipment falls can also be moved, so that the workers can take the separated materials conveniently and ensure the stability of the equipment.

Description

Technical Field

[0001] The invention relates to the field of asphalt extraction equipment, in particular to a fiber separation device for measuring the gradation of asphalt mixture. Background Art

[0002] Coarse-graded asphalt concrete, commonly known as asphalt concrete, is a mixture of artificially selected mineral materials with a certain graded composition, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions. In the research and quality control of asphalt mixtures, gradation is a key factor.

[0003] At present, asphalt extractors are usually used to extract asphalt mixtures, and the extracted stones are screened to determine the true gradation of the stones. Asphalt extractors are scientific instruments used to extract asphalt from asphalt mixtures and determine its content. They generally include a machine base, a motor, a spindle, a material container, an annular filter paper, a manual device, an outer cover, and an electrical controller. The asphalt in the asphalt mixture is dissolved by using the solvent's solubility in asphalt; then, the high-speed rotation of the centrifuge causes the solvent containing the asphalt to generate different centrifugal forces with solid particles such as aggregates and mineral powder, thereby achieving separation.

[0004] With the development of technology, the application of fiber in asphalt mixture is becoming more and more extensive. Fiber can enhance the performance of asphalt mixture, such as improving crack resistance and stability. However, in the extraction and screening process of existing asphalt extractors, such as the RP-0722A asphalt extractor, the mineral material and fiber are entangled with each other and difficult to separate, which affects the determination of the actual mineral material gradation and fiber content. The use of manual separation often results in large detection errors and low efficiency. Therefore, it is necessary to propose a device with fiber separation capability to accurately determine the gradation of asphalt mixture.

[0005] Based on this, the present invention is proposed. Summary of the invention

[0006] According to an embodiment of the present invention, a fiber separation device for measuring asphalt mixture gradation is provided to solve the existing background problems.

[0007] In a first aspect of the present invention, a fiber separation device for measuring asphalt mixture gradation is provided.

[0008] The fiber separation device for measuring the gradation of asphalt mixture comprises: a base, a support part, a separation mechanism, a spray mechanism, a screening part, a guide plate and a centrifugal part, wherein the guide plate is installed on the support part, the separation mechanism is installed on the support part, the screening part is installed between the separation mechanism and the guide plate, and the spray mechanism is installed on the top of the separation mechanism;

[0009] The separation mechanism comprises a fixing frame, a through-port, a separation cover, a movable plate, a slot and a top block, wherein the fixing frame is mounted on the bracket portion, the fixing frame is a cylindrical cavity with an open top, the through-port is arranged at the bottom of the fixing frame, the separation cover is mounted in the fixing frame, the movable plate is mounted in the separation cover, the slot is arranged on the lower surface of the movable plate, and the top block is mounted on the fixing frame;

[0010] The upper surface of the movable plate is conical;

[0011] The top block is in the shape of a prism and matches the shape of the slot, and the height of the top block is greater than the depth of the slot;

[0012] The screening part comprises a plurality of cover shells and a plurality of screens, wherein the plurality of cover shells are arranged in the up-down direction, and the plurality of screens are respectively installed in the plurality of cover shells.

[0013] Preferably, the separation mechanism also includes a fixed seat, a first gear, a first motor, a second gear, a turntable, a driving section, a lifting section, and a slot. The fixed seat is installed on the bracket part, the first gear is rotatably installed on the fixed seat, the first motor is installed on the fixed seat, and the output end of the first motor is connected to the first gear, the second gear is rotatably installed on the bracket part, and the second gear is meshingly connected to the first gear, the turntable is installed on the second gear, the driving section is installed on the turntable, and the lowest point of the driving section is lower than the plane where the turntable is located, the lifting section is connected to the separation cover, the slot is opened on the lifting section, and the turntable is engaged with the slot.

[0014] Preferably, the spray mechanism includes a spray seat, a main pipe, a connecting frame and a spray head. The connecting frame is rotatably mounted on the fixed frame. There are several spray heads, which are circumferentially mounted on the connecting frame. The bottom of the spray head faces the center position of the separation cover. The spray seat is installed on the top of the spray head. The spray seat is a hollow structure, and the inner cavity of the spray seat is connected to the spray head. The main pipe is connected to the top of the spray seat.

[0015] Preferably, the separation mechanism also includes an extension block, a slide groove, a third gear, a slide rod and a fixed section, the extension block is installed on the connecting frame, the slide groove is opened on the extension block, the third gear is meshingly connected with the second gear, the slide rod is installed on the third gear, and the slide rod extends into the slide groove, the fixed section is rotatably installed on the lower surface of the third gear, and the fixed section is plugged into the lifting section.

[0016] Preferably, a slideway is provided on the inner wall of the fixing frame, a slider is installed on the outer wall of the separation cover, and the slider is slidably connected to the slideway.

[0017] Preferably, a protrusion is installed on the fixed joint, a groove is provided on the inner wall of the lifting joint, and the protrusion is slidably connected to the groove.

[0018] Preferably, the bracket portion includes an outer cylinder, a lifting rod, a rotating seat, a sleeve and an insertion rod, the outer cylinder is rotatably mounted on the base, the lifting rod is mounted in the outer cylinder, the rotating seat is rotatably mounted on the top of the outer cylinder, the lifting rod is provided with an external thread, the inner wall of the rotating seat is provided with an internal thread, the rotating seat and the lifting rod are threadedly connected, the sleeve is mounted in the outer cylinder, the insertion rod is mounted at the bottom end of the lifting rod, and the insertion rod is slidably connected with the sleeve, and the insertion rod is in the shape of a prism and its shape is adapted to the shape of the inner cavity of the sleeve.

[0019] Preferably, a limiting mechanism is installed in the base;

[0020] The limiting mechanism comprises an extension rod, a pull rod, a channel, an installation cavity, two limit blocks, two springs, a sliding block, two limit rods and a bottom block, the extension rod is installed on the outer cylinder, the pull rod is installed on the extension rod, the channel is opened on the base, the channel is arc-shaped, and the center of the arc is coaxial with the outer cylinder; the installation cavity is installed on the base, the two limit blocks are symmetrically installed in the installation cavity, one end of the two springs are respectively connected to the two limit blocks, and the other ends of the two springs are connected to the inner wall of the installation cavity, there are several sliding blocks, and the several sliding blocks are divided into two groups, the two groups of sliding blocks are respectively installed on the two limit blocks, and the two limit rods are respectively installed in the installation cavity symmetrically, the sliding block is slidably connected to the limit rod, the bottom block is slidably installed in the inner cavity of the channel, and the bottom block is connected to the lower surface of the extension rod;

[0021] The limit block is provided with a sliding surface.

[0022] Preferably, the centrifugal part includes a shell, a cover plate, an outlet pipe, a centrifugal seat and a second motor, the shell is mounted on the base and is coaxially arranged with the guide plate, the cover plate is mounted on the shell, one end of the outlet pipe is mounted on the shell, the centrifugal seat is rotatably mounted in the shell, the second motor is mounted in the base, and the output end of the second motor is connected to the centrifugal seat.

[0023] Preferably, it further comprises a box body and a device bottom plate, wherein the device bottom plate is mounted on the bottom of the base, the box body is mounted on the device bottom plate, and universal wheels are respectively mounted on the four corners of the lower surface of the device bottom plate;

[0024] The box is connected to an end of the main pipe away from the spray seat through a pipe;

[0025] The box body is connected to the other end of the outlet pipe.

[0026] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0027] 1. The present invention provides a fiber separation device for measuring the gradation of asphalt mixture. When the first gear is driven to rotate by the first motor, the third gear can be rotated through the transmission with the second gear. The extension block is driven to reciprocate the connecting frame by the movement of the sliding rod, so that the multiple nozzles can swing when spraying the solvent, and then the asphalt mixture on the top of the movable plate can be fully sprayed, so that the asphalt can be fully mixed and reacted with the solvent, and the dissolution and separation of the asphalt and the fiber can be achieved.

[0028] 2. The fiber separation device for measuring the gradation of asphalt mixture provided by the present invention can lower the lifting section by driving the turning plate following the rotation of the second gear, and then form a channel between the movable plate and the separation cover by utilizing the cooperation between the top block and the slot, so that the dispersed asphalt mixture and solution can fall and flow out, while preventing large pieces of asphalt from passing through, thereby realizing the automatic separation and outflow of the dissolved and dispersed asphalt mixture. Through multiple operations, the asphaltene and fibers in the asphalt mixture can be fully dissolved, so as to facilitate accurate measurement data.

[0029] 3. The fiber separation device provided by the present invention is used to measure the gradation of asphalt mixture. The lifting rod can be raised and lowered by rotating the rotating seat, thereby adjusting the distance between the guide plate and the separation mechanism, which is convenient for adjusting the screening level and number of times of the screening part according to actual conditions. At the same time, the cooperation of the sleeve and the plug rod can prevent the lifting rod from rotating, and the operation is simple.

[0030] The fiber separation device for measuring the gradation of asphalt mixture provided by the present invention can rotate the outer cylinder by pulling the pull rod, so that the separation mechanism, the spraying mechanism, the screening part and the guide plate can leave the centrifugal part together, and the limit mechanism can be used to lock the rotation to ensure the accuracy of the equipment.

[0031] In summary, the present invention can realize the dissolution, separation and falling of asphalt, fiber and aggregate, and prevent large pieces of asphalt mixture from passing through, so as to facilitate the acquisition of accurate weight data; the screening level and number of times of the equipment can also be adjusted according to actual conditions; at the same time, the position of the asphalt falling of the equipment can be moved, which is convenient for workers to take the separated materials and can ensure the stability of the equipment.

[0032] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0034] Figure 1 A schematic structural diagram of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0035] Figure 2 A perspective view showing a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of the rear structure of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0037] Figure 4 A schematic diagram of an exploded structure of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0038] Figure 5 A schematic diagram of the explosion structure of the spray mechanism of the fiber separation device for measuring the gradation of asphalt mixture according to an embodiment of the present invention is shown;

[0039] Figure 6 A schematic diagram of an exploded structure of a separation mechanism of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0040] Figure 7 A schematic diagram of the structure of a movable plate of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown in a bottom view;

[0041] Figure 8 A schematic structural diagram of a separation cover of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0042] Fig. 9 A left view of a separation mechanism of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0043] Fig.10 A cross-sectional view of a separation cover of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0044] Fig.11 An enlarged view of position A of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0045] Fig.12 An enlarged view of position B of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0046] Fig.13 A schematic structural diagram of a bracket portion of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0047] Fig.14 A schematic diagram of a cross-sectional exploded structure of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown;

[0048] Fig.15 A top view of a limiting mechanism of a fiber separation device for measuring asphalt mixture gradation according to an embodiment of the present invention is shown.

[0049] The reference numerals are as follows:

[0050] 1. base, 2. bracket part, 21. outer cylinder, 22. lifting rod, 23. rotating seat, 24. sleeve, 25. plug rod, 3. separation mechanism, 31. fixed frame, 32. through port, 33. separation cover, 34. slideway, 35. slider, 36. movable plate, 37. slot, 38. top block, 39. fixed seat, 310. first gear, 311. first motor, 312. second gear, 313. extension block, 314. slideway, 315. third gear, 3151. slide rod, 316. turntable, 3161. driving section, 317. fixed section, 3171. protrusion, 318 , lifting section, 3181, groove, 319, slot, 4, spray mechanism, 41, spray seat, 42, main pipe, 43, connecting frame, 44, nozzle, 5, screening part, 51, cover, 52, screen, 6, guide plate, 7, centrifugal part, 71, outer shell, 72, cover plate, 73, export pipe, 74, centrifugal seat, 75, second motor, 8, limiting mechanism, 81, extension rod, 82, pull rod, 83, channel, 84, installation cavity, 85, limiting block, 86, spring, 87, sliding block, 88, limiting rod, 89, bottom block, 9, box body, 10, equipment bottom plate, 11, universal wheel. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] like Figures 1 to 4 As shown, the fiber separation device for measuring the gradation of asphalt mixture includes: a base 1, a bracket part 2, a separation mechanism 3, a spraying mechanism 4, a screening part 5, a guide plate 6, a centrifugal part 7, a limit mechanism 8, a box body 9, a device bottom plate 10 and a universal wheel 11. The device bottom plate 10 is installed at the bottom of the base 1, the box body 9 is installed on the device bottom plate 10, and the four corners of the lower surface of the device bottom plate 10 are respectively installed with universal wheels 11, and the device bottom plate 10 can be pushed to move the device as a whole.

[0054] like Figure 3 , Fig.13 and Fig.14 As shown, the bracket part 2 is mounted on the base 1, and the bracket part 2 includes an outer cylinder 21, a lifting rod 22, a rotating seat 23, a sleeve 24 and an insertion rod 25. The outer cylinder 21 is rotatably mounted on the base 1, and the lifting rod 22 is mounted in the outer cylinder 21. One end of the lifting rod 22 is located in the outer cylinder 21, and the other end of the lifting rod 22 extends out of the outer cylinder 21. The rotating seat 23 is rotatably mounted on the top of the outer cylinder 21, and the lifting rod 22 is provided with an external thread, and the inner wall of the rotating seat 23 is provided with an internal thread. The rotating seat 23 and the lifting rod 22 are threadedly connected. When the rotating seat 23 rotates, the lifting rod 22 can be driven to move along its own axial direction. The sleeve 24 is installed in the outer cylinder 21, and the plug rod 25 is installed at the bottom end of the lifting rod 22, and the plug rod 25 is slidably plugged with the sleeve 24, and the plug rod 25 can slide up and down in the sleeve 24, and the height of the sleeve 24 is greater than the moving range of the lifting rod 22, and the plug rod 25 will not be separated from the inner cavity of the sleeve 24. In addition, the plug rod 25 is a prism shape and the shape is adapted to the inner cavity shape of the sleeve 24. The adaptation of the two ensures that there is no relative rotation between the plug rod 25 and the lifting rod 22 and the outer cylinder 21. When in use, the lifting rod 22 can be raised by rotating the rotating seat 23, and the lifting rod 22 can be reset by rotating the rotating seat 23 in the opposite direction.

[0055] like Figure 3 , Fig.13 and Fig.15 As shown, a limiting mechanism 8 is installed in the base 1, and the limiting mechanism 8 is used to complete the locking of the bracket part 2 after rotation. The limiting mechanism 8 includes an extension rod 81, a pull rod 82, a channel 83, an installation cavity 84, two limiting blocks 85, two springs 86, a sliding block 87, two limiting rods 88 and a bottom block 89. The extension rod 81 is installed on the outer cylinder 21, and the pull rod 82 is installed on the extension rod 81. The pull rod 82 is vertically arranged to facilitate the user to hold and rotate the outer cylinder 21. The channel 83 is opened on the base 1, and the channel 83 is arranged in an arc shape, and the center of the arc is coaxially arranged with the outer cylinder 21, and the trajectory is the same as the rotation trajectory of the extension rod 81. The installation cavity 84 is installed on the base 1, and the two limiting blocks 85 are symmetrically installed in the installation cavity 84. The limiting block 85 is provided with a sliding surface 851, and the sliding surface 851 corresponds to the position of the channel 83. One end of the two springs 86 is connected to the two limit blocks 85 respectively, and the other end of the two springs 86 is connected to the inner wall of the installation cavity 84. When the limit block 85 is moved by external force, the spring 86 can be compressed or stretched. After the external force is removed, the limit block 85 can be reset by the elastic force or tension of the spring. There are a plurality of sliding blocks 87, and the plurality of sliding blocks 87 are divided into two groups. The two groups of sliding blocks 87 are respectively installed on the two limit blocks 85. The two limit rods 88 are respectively installed in the installation cavity 84 symmetrically. The sliding block 87 is slidably connected with the limit rod 88. The movement direction of the limit block 85 can be limited by the cooperation of the limit rod 88 and the sliding block 87. The bottom block 89 is slidably installed in the inner cavity of the channel 83, and the bottom block 89 is connected to the lower surface of the extension rod 81. When in use, the pull rod 82 is manually pulled to rotate the outer cylinder 21, and the limit block 85 is moved by the cooperation of the bottom block 89 and the sliding surface 851 on the limit block 85. Then the bottom block 89 slides in the channel 83, and when it contacts the sliding surface 851 on another stop block 85, the stop block 85 can be moved and the spring 86 can be stretched. When the bottom block 89 enters the gap between the stop block 85 and the channel 83, the stop block 85 is reset by the pulling force of the spring 86, thereby limiting the bottom block 89 and fixing the outer cylinder 21. The stability of the outer cylinder 21 can be ensured, and the outer cylinder 21 can remain stable after rotating.

[0056] like Figures 5 to 12As shown, the separation mechanism 3 is installed on the bracket part 2, and the separation mechanism 3 includes a fixed frame 31, a through port 32, a separation cover 33, a slide 34, a slider 35, a movable plate 36, a slot 37, a top block 38, a fixed seat 39, a first gear 310, a first motor 311, a second gear 312, a turntable 316, a driving section 3161, a fixed section 317, a convex block 3171, a lifting section 318, a groove 3181, and a slot 319. The fixed frame 31 is installed on the lifting rod 22 in the bracket part 2. The fixed frame 31 is a cylindrical cavity with an open top, and the through port 32 is provided at the bottom of the fixed frame 31. The separation cover 33 is installed in the fixed frame 31, and the inner wall of the fixed frame 31 is provided with a slide 34. The outer wall of the separation cover 33 is provided with a slider 35. The slider 35 is slidably connected with the slide 34. By using the mutual adaptation of the two, it can be ensured that there is no relative rotation between the separation cover 33 and the fixed frame 31, thereby improving the stability of the equipment. The separation cover 33 is a cylindrical cavity open from top to bottom. The movable plate 36 is installed in the separation cover 33. The upper surface of the movable plate 36 is conical. The material placed on the top surface can slide to the edge under the action of gravity. The bottom of the separation cover 33 is provided with a side groove capable of supporting the movable plate 36 to prevent the movable plate 36 from falling off. The slot 37 is provided on the lower surface of the movable plate 36. The top block 38 is installed on the fixed frame 31. The top block 38 is set in a prism shape and is compatible with the shape of the slot 37. The height of the top block 38 is greater than the depth of the slot 37. When the bottom of the separation cover 33 contacts the bottom of the inner cavity of the fixed frame 31, the limit of the top block 38 can prevent the movable plate 36 from falling synchronously, so that a gap is formed between the movable plate 36 and the separation cover 33. At the same time, the prism shape can prevent the movable plate 36 and the separation cover 33 from rotating relative to each other. The fixing seat 39 is mounted on the bracket part 2, the first gear 310 is rotatably mounted on the fixing seat 39, the first motor 311 is mounted on the fixing seat 39, and the output end of the first motor 311 is connected to the first gear 310, the second gear 312 is rotatably mounted on the bracket part 2, and the second gear 312 is meshed and connected with the first gear 310, and turning on the first motor 311 can drive the first gear 310 to rotate, thereby causing the second gear 312 to rotate synchronously. The turntable 316 is mounted on the second gear 312, and the turntable 316 can rotate with the second gear 312. The driving section 3161 is mounted on the turntable 316, and the lowest point of the driving section 3161 is lower than the plane where the turntable 316 is located. The lifting joint 318 is connected to the separation cover 33, the slot 319 is provided on the lifting joint 318, and the turntable 316 is engaged with the slot 319. When the driving section 3161 on the turntable 316 is rotated to engage with the slot 319, the lifting joint 318 can drive the separation cover 33 to descend to fit with the bottom of the inner cavity of the fixed frame 31. When the turntable 316 rotates one circle, the lifting joint 318 can be lowered and reset once.

[0057] When in use, the first motor 311 is turned on to drive the first gear 310 to rotate, thereby causing the second gear 312 to rotate. At this time, the turntable 316 starts to rotate. When the driving section 3161 is engaged with the slot 319, the lifting section 318 descends. At this time, the separation cover 33 descends, and the top block 38 is used to form a gap between the movable plate 36 and the separation cover 33. When the driving section 3161 leaves the slot 319, the lifting section 318 and the separation cover 33 are reset, and the movable plate 36 and the separation cover 33 are closed again.

[0058] like Figure 4 , Figure 5 and Fig.11 As shown, the spray mechanism 4 is installed on the top of the separation mechanism 3. The spray mechanism 4 includes a spray seat 41, a main pipe 42, a connecting frame 43 and a nozzle 44. The connecting frame 43 is rotatably installed on the fixed frame 31. There are several nozzles 44, which are respectively installed on the connecting frame 43 along the circumferential direction. The nozzle 44 of this embodiment uses the model: XWT high-pressure fine water mist nozzle. The bottom of the nozzle 44 faces the center position of the separation cover 33. When asphalt mixture is placed on the movable plate 36, the high-pressure water flow of the nozzle 44 can spray the asphalt mixture toward the center position. At the same time, the asphalt mixture will slide down to the edge by using the conical surface of the movable plate 36. In this way, the spraying and sliding directions are opposite, which can quickly disperse the asphalt mixture. The spray seat 41 is installed on the top of the nozzle 44. The spray seat 41 is a hollow structure, and the inner cavity of the spray seat 41 is connected to the nozzle 44. The main pipe 42 is connected to the top of the spray seat 41, and the box 9 is connected to the end of the main pipe 42 away from the spray seat 41 through a pipeline. In this embodiment, the box 9 is equipped with no less than two solution tanks, each of which is equipped with a high-pressure pump. Trichloroethylene and phenol-tetrachloroethane are respectively contained in each solution tank. Trichloroethylene as a solution can dissolve asphalt and organic fibers in the asphalt mixture, while phenol-tetrachloroethane can dissolve inorganic fibers in the asphalt mixture. The high-pressure pump is used to make the nozzle 44 alternately spray the above two solutions, so that the asphalt, fiber and aggregate in the asphalt mixture can be quickly and thoroughly separated.

[0059] In order to enable the spraying mechanism 4 to perform the spraying work better, the following solution is proposed: Figure 5 , Figure 8 , Fig. 9 , Fig.11 and Fig.12, the extension block 313 is mounted on the connecting frame 43, the slide slot 314 is provided on the extension block 313, the third gear 315 is meshed and connected with the second gear 312, the rotation of the second gear 312 can drive the third gear 315 to rotate, the slide bar 3151 is mounted on the third gear 315, and the slide bar 3151 extends into the slide slot 314, wherein a limit plate is mounted on the top of the slide bar 3151, the diameter of the limit plate is greater than the width of the slide slot 314, and the position of the third gear 315 is ensured to be stable by the combined action of the limit plate and the extension block 313. When the third gear 315 rotates, the extension block 313 can be driven to swing back and forth by the slide bar 3151, thereby causing the connecting frame 43 to rotate back and forth. The diameter of the third gear 315 is one quarter of the diameter of the second gear 312, ensuring that the third gear 315 can rotate several times when the second gear 312 rotates one circle. The length of the chute 314 is equal to the diameter of the third gear 315, so as to avoid the interference of the slide bar 3151 with the chute 314 when the slide bar 3151 rotates with the third gear 315. The fixed section 317 is rotatably mounted on the lower surface of the third gear 315, and the fixed section 317 is plugged with the lifting section 318. A protrusion 3171 is mounted on the fixed section 317, and a groove 3181 is provided on the inner wall of the lifting section 318. The protrusion 3171 is slidably connected with the groove 3181. By means of the cooperation between the protrusion 3171 and the groove 3181, it is ensured that there is only axial movement, i.e., up and down movement, between the fixed section 317 and the lifting section 318, and no relative rotation occurs. When in use, the second gear 312 drives the third gear 315 to rotate, so that the extension block 313 drives the connecting frame 43 to rotate back and forth by the movement of the slide bar 3151, so as to realize the reciprocating swing spraying of the spray head 44 within a certain range, and at the same time, it can ensure that the gap between the movable plate 36 and the separation cover 33 is opened after swing spraying for several times.

[0060] like Figure 4 As shown, the guide plate 6 is installed on the outer wall of the outer cylinder 21 on the bracket part 2. The guide plate 6 is set in an inverted cone shape, and a through hole is provided in the middle thereof to facilitate the centralized discharge of liquid. The screening part 5 is installed between the separation mechanism 3 and the guide plate 6. The screening part 5 includes a plurality of housings 51 and a plurality of screens 52. The plurality of housings 51 are arranged in the up-down direction, and the plurality of screens 52 are respectively installed in the plurality of housings 51. In this embodiment, there are three housings 51 and three screens 52, and the mesh numbers of the three screens 52 are 30, 50 and 100 from top to bottom, respectively, and the sieves allowed to pass are getting smaller and smaller.

[0061] like Figure 4As shown, the centrifugal part 7 includes a shell 71, a cover plate 72, an outlet pipe 73, a centrifugal seat 74 and a second motor 75. The shell 71 is mounted on the base 1 and is coaxially arranged with the guide plate 6. The cover plate 72 is mounted on the shell 71, and a circular hole is left in the center of the cover plate 72. The centrifugal seat 74 is rotatably mounted in the shell 71. A circular hole for placing a barrel is left in the center of the centrifugal seat 74, and the solution flowing out of the guide plate 6 will be received by the barrel. One end of the outlet pipe 73 is mounted on the shell 71, and the box 9 is connected to the other end of the outlet pipe 73. In this embodiment, a recovery bucket is also provided in the box 9, and the material discharged through the outlet pipe 73 will enter it for collection. The second motor 75 is mounted in the base 1, and the output end of the second motor 75 is connected to the centrifugal seat 74. The second motor 75 can provide a rotation speed of at least 3000 rpm for the centrifugal seat 74. It is worth noting that this embodiment is developed and improved based on the asphalt extractor model RP-0722A, and the centrifugal part 7 has the same equipment model and function as the centrifuge part of the RP-0722A asphalt extractor. When in use, the second motor 75 is turned on to rotate the centrifugal seat 74, and the barrel on the centrifugal seat 74 rotates synchronously to achieve separation of the solution and the mineral powder, and finally the solution is discharged through the outlet pipe 73.

[0062] This embodiment provides a method for using a fiber separation device for measuring asphalt mixture gradation, comprising the following steps:

[0063] Place the cylinder containing the filter paper into the centrifugal seat 74, and then cover it with the cover plate 72;

[0064] Hold the pull rod 82 and rotate it to rotate the outer cylinder 21. When the guide plate 6, the separation mechanism 3 and the spray mechanism 4 correspond to the centrifugal part 7, the bottom block 89 is limited by the limit block 85, and the outer cylinder 21 is fixed.

[0065] Rotate the rotating seat 23 to move the lifting rod 22 up and down, adjust the distance between the fixing frame 31 and the guide plate 6, and then place each cover 51 and the screen 52 in the up and down direction to ensure that the mesh number of the screen 52 increases from top to bottom;

[0066] The asphalt mixture is placed in the movable plate 36, and the nozzle 44 is turned on to spray trichloroethylene onto the movable plate 36 in the separation cover 33 to dissolve the asphalt and organic fibers in the asphalt mixture. At the same time, the asphalt mixture is dispersed by high-pressure water flow to make it more fully dissolved;

[0067] The first motor 311 is turned on to make the first gear 310, the second gear 312 and the third gear 315 start to rotate synchronously, so that the connecting frame 43 and the nozzle 44 swing back and forth, so that the spraying is more complete; at the same time, after the nozzle 44 swings back and forth several times, the gap between the movable plate 36 and the separation cover 33 can be opened, and the solution falls through the opening 32 and is screened layer by layer by the screen 52;

[0068] After the gap between the movable plate 36 and the separation cover 33 is opened and closed once, the nozzle 44 sprays phenol-tetrachloroethane to dissolve the inorganic fibers in the asphalt mixture, and the solution is dropped and screened;

[0069] The second motor 75 is turned on to drive the barrel in the centrifugal seat 74 to rotate. When the filtered solution enters the barrel, it is subjected to the centrifugal force to separate the solution and the mineral powder.

[0070] Perform at least two alternating sprays of trichloroethylene and two sprays of phenol-tetrachloroethane;

[0071] After spraying and screening, continue centrifugal work for 5 minutes to finish the work;

[0072] The aggregate on the movable plate 36 and each screen 52, the mineral powder in the barrel, and the discharged solution are collected and weighed respectively, so as to determine the proportion of the aggregate in the asphalt mixture later.

[0073] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fiber separation device for measuring asphalt mixture gradation, characterized in that: include: A base (1), a bracket portion (2), a separation mechanism (3), a spray mechanism (4), a screening portion (5), a guide plate (6) and a centrifugal portion (7), wherein the guide plate (6) is mounted on the bracket portion (2), the separation mechanism (3) is mounted on the bracket portion (2), the screening portion (5) is mounted between the separation mechanism (3) and the guide plate (6), and the spray mechanism (4) is mounted on the top of the separation mechanism (3); The separation mechanism (3) comprises a fixing frame (31), a through opening (32), a separation cover (33), a movable plate (36), a slot (37) and a top block (38); the fixing frame (31) is mounted on the bracket portion (2); the fixing frame (31) is a cylindrical cavity with an open top; the through opening (32) is provided at the bottom of the fixing frame (31); the separation cover (33) is mounted in the fixing frame (31); the movable plate (36) is mounted in the separation cover (33); the slot (37) is provided on the lower surface of the movable plate (36); and the top block (38) is mounted on the fixing frame (31); The upper surface of the movable plate (36) is conical; The top block (38) is in the shape of a prism and matches the shape of the slot (37); the height of the top block (38) is greater than the depth of the slot (37); The screening part (5) comprises a plurality of cover shells (51) and a plurality of screens (52), wherein the plurality of cover shells (51) are arranged in an up-and-down direction, and the plurality of screens (52) are respectively installed in the plurality of cover shells (51); The separation mechanism (3) further comprises a fixing seat (39), a first gear (310), a first motor (311), a second gear (312), a rotating disk (316), a driving section (3161), a lifting section (318), and a slot (319); the fixing seat (39) is mounted on the bracket portion (2); the first gear (310) is rotatably mounted on the fixing seat (39); the first motor (311) is mounted on the fixing seat (39); an output end of the first motor (311) is connected to the first gear (310); and the second gear (311) is connected to the first gear (310). 12) is rotatably mounted on the bracket portion (2), and the second gear (312) is meshedly connected with the first gear (310), the turntable (316) is mounted on the second gear (312), the driving section (3161) is mounted on the turntable (316), and the lowest point of the driving section (3161) is lower than the plane where the turntable (316) is located, the lifting section (318) is connected to the separation cover (33), the clamping groove (319) is opened on the lifting section (318), and the turntable (316) is clamped with the clamping groove (319).

2. The fiber separation device for measuring asphalt mixture gradation according to claim 1, characterized in that: The spray mechanism (4) comprises a spray seat (41), a main pipe (42), a connecting frame (43) and a spray head (44); the connecting frame (43) is rotatably mounted on the fixed frame (31); there are a plurality of spray heads (44) which are respectively mounted on the connecting frame (43) along a circumferential direction; the bottom of the spray head (44) faces the center position of the separation cover (33); the spray seat (41) is mounted on the top of the spray head (44); the spray seat (41) is a hollow structure; the inner cavity of the spray seat (41) is connected to the spray head (44); and the main pipe (42) is connected to the top of the spray seat (41).

3. The fiber separation device for measuring asphalt mixture gradation according to claim 2, characterized in that: The separation mechanism (3) further comprises an extension block (313), a slide groove (314), a third gear (315), a slide rod (3151) and a fixed joint (317); the extension block (313) is mounted on the connecting frame (43); the slide groove (314) is provided on the extension block (313); the third gear (315) is meshingly connected with the second gear (312); the slide rod (3151) is mounted on the third gear (315), and the slide rod (3151) extends into the slide groove (314); the fixed joint (317) is rotatably mounted on the lower surface of the third gear (315); and the fixed joint (317) is plugged into the lifting joint (318).

4. The fiber separation device for measuring asphalt mixture gradation according to claim 3, characterized in that: The inner wall of the fixing frame (31) is provided with a slideway (34), the outer wall of the separation cover (33) is provided with a sliding block (35), and the sliding block (35) is slidably connected to the slideway (34).

5. The fiber separation device for measuring asphalt mixture gradation according to claim 4, characterized in that: A protrusion (3171) is installed on the fixed joint (317), a groove (3181) is provided on the inner wall of the lifting joint (318), and the protrusion (3171) is slidably connected to the groove (3181).

6. The fiber separation device for measuring asphalt mixture gradation according to claim 5, characterized in that: The support portion (2) comprises an outer cylinder (21), a lifting rod (22), a rotating seat (23), a sleeve (24) and an insertion rod (25); the outer cylinder (21) is rotatably mounted on the base (1); the lifting rod (22) is mounted in the outer cylinder (21); the rotating seat (23) is rotatably mounted on the top of the outer cylinder (21); the lifting rod (22) is provided with an external thread; the inner wall of the rotating seat (23) is provided with an internal thread; the rotating seat (23) and the lifting rod (22) are threadedly connected; the sleeve (24) is mounted in the outer cylinder (21); the insertion rod (25) is mounted at the bottom end of the lifting rod (22); the insertion rod (25) is slidably plugged into the sleeve (24); the insertion rod (25) is in the shape of a prism and its shape matches the shape of the inner cavity of the sleeve (24).

7. The fiber separation device for measuring asphalt mixture gradation according to claim 6, characterized in that: A limiting mechanism (8) is installed in the base (1); The limiting mechanism (8) comprises an extension rod (81), a pull rod (82), a channel (83), an installation cavity (84), two limiting blocks (85), two springs (86), a sliding block (87), two limiting rods (88) and a bottom block (89); the extension rod (81) is mounted on the outer cylinder (21); the pull rod (82) is mounted on the extension rod (81); the channel (83) is opened on the base (1); the channel (83) is arranged in an arc shape, and the center of the arc is coaxial with the outer cylinder (21); the installation cavity (84) is mounted on the base (1); the two limiting blocks (85) are symmetrically mounted in the installation cavity (84) ), one end of the two springs (86) is connected to the two limit blocks (85) respectively, the other end of the two springs (86) is connected to the inner wall of the installation cavity (84), there are a plurality of sliding blocks (87), the plurality of sliding blocks (87) are divided into two groups, the two groups of sliding blocks (87) are respectively installed on the two limit blocks (85), the two limit rods (88) are respectively installed in the installation cavity (84) symmetrically, the sliding blocks (87) are slidably connected to the limit rods (88), the bottom block (89) is slidably installed in the inner cavity of the channel (83), and the bottom block (89) is connected to the lower surface of the extension rod (81); The limit block (85) is provided with a sliding surface (851).

8. The fiber separation device for measuring asphalt mixture gradation according to claim 7, characterized in that: The centrifugal part (7) comprises a shell (71), a cover plate (72), an outlet pipe (73), a centrifugal seat (74) and a second motor (75); the shell (71) is mounted on the base (1) and is coaxially arranged with the guide plate (6); the cover plate (72) is mounted on the shell (71); one end of the outlet pipe (73) is mounted on the shell (71); the centrifugal seat (74) is rotatably mounted in the shell (71); the second motor (75) is mounted in the base (1); and an output end of the second motor (75) is connected to the centrifugal seat (74).

9. The fiber separation device for measuring asphalt mixture gradation according to claim 8, characterized in that: It also comprises a box body (9) and a device bottom plate (10), wherein the device bottom plate (10) is mounted on the bottom of the base (1), the box body (9) is mounted on the device bottom plate (10), and universal wheels (11) are respectively mounted on the four corners of the lower surface of the device bottom plate (10); The box (9) is connected to an end of the main pipe (42) away from the spray seat (41) through a pipe; The box body (9) is connected to the other end of the outlet pipe (73).

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