Refining separation device for asphalt RAP material
By combining electromagnetic blocks and fans, along with auger conveyors and multi-specification screening screens, the problem of coarse and fine aggregates mixing in asphalt RAP material separation devices has been solved, achieving efficient separation of asphalt and aggregates and improving separation accuracy and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, the fine separation devices for asphalt RAP materials are difficult to accurately separate materials of different particle sizes, resulting in a mixture of coarse and fine aggregates, which affects the performance of new asphalt mixtures and pavement quality.
Electromagnetic blocks are used to adsorb ferromagnetic impurities, and a blower blows up light materials. After preliminary screening, the materials are sent to a centrifugal impact crusher via an auger conveyor to separate asphalt from aggregates. Subsequently, the materials are finely graded in a secondary screening box through three screening screens to achieve efficient separation of asphalt and aggregates.
It achieves precise separation of asphalt and aggregates, improves separation accuracy and quality, enhances overall work efficiency, and has a compact structure that facilitates equipment installation and maintenance.
Smart Images
Figure CN224010401U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fine separation device technical field especially relates to a fine separation device of asphalt RAP material. BACKGROUND
[0002] Asphalt RAP material is recycled asphalt pavement, and is a material obtained by milling, crushing and other processes on old asphalt pavement. It contains old asphalt, aggregate and part of mineral powder, retains the performance characteristics of the original pavement material, and can be reused in road construction after reasonable processing, realizing recycling of resources.
[0003] The fine separation device of asphalt RAP material screens out RAP material with a particle size of 0-5 mm through a primary vibrating screen, and the remaining RAP material with a particle size of greater than 5 mm enters a centrifugal impact crusher, is accelerated and thrown out under the action of a rotor, collides with a baffle and falling RAP material, and the collided RAP material is screened into different particle sizes through a secondary vibrating screen, the surface asphalt of the coarse RAP material is reduced, and most of the asphalt enters the fine RAP material, realizing separation of the asphalt and the coarse RAP material.
[0004] In the prior art, the fine separation device of part of asphalt RAP material has many disadvantages due to the traditional asphalt RAP material separation method, the conventional screening method is difficult to accurately separate materials with different particle sizes, and the simple crushing process cannot effectively separate the asphalt from the aggregate surface, so that a large amount of asphalt is still attached to the surface of the separated aggregate, which affects the performance of new asphalt mixture and reduces the pavement quality when the aggregate is reused in road construction, thereby causing the coarse and fine aggregates to be mixed, and affecting the subsequent recycling effect. Therefore, the fine separation device of asphalt RAP material is proposed to solve the above problems. SUMMARY
[0005] In order to make up for the above shortcomings, the utility model provides a fine separation device of asphalt RAP material, which aims at improving the problem of mixing coarse and fine aggregates in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A fine separation device of asphalt RAP material, comprising a shell, an electromagnetic block is fixedly connected to the left side inner wall of the shell, two fans are fixedly connected to the bottom of the shell, a U-shaped frame is slidingly connected to the inner wall of the shell, a vibrator one is fixedly connected to the front and rear inner walls of the shell respectively, a screening net one is fixedly connected to the side close to the two vibrators one, a secondary screening box is arranged at the right side bottom end of the shell, a plurality of screening nets two are arranged on the inner wall of the secondary screening box, a portable assembly convenient for integration is fixedly connected to the bottom end inner wall of the shell.
[0008] As a further description of the above technical solutions:
[0009] The portable assembly comprises an auger conveyor, centrifugal impact pulverizers are fixedly connected to the inner walls of the front and rear sides of the shell, a feeding groove one is formed in the inner wall of the auger conveyor, and a partition plate is fixedly connected to the inner wall of the shell.
[0010] As a further description of the above technical solutions:
[0011] A feeding hopper one is fixedly connected to the top of the shell, and a feeding hopper two is fixedly connected to the top of the secondary sieve box.
[0012] As a further description of the above technical solutions:
[0013] A plurality of discharge hoppers are fixedly connected to the front side of the secondary sieve box, and the outer part of the discharge hoppers is in contact with the inner wall of the shell.
[0014] As a further description of the above technical solutions:
[0015] A plurality of vibrators two are fixedly connected to the inner walls of the front and rear sides of the secondary sieve box, respectively, and the front and rear sides of the screening net two are fixedly connected to the proximal sides of two of the vibrators two.
[0016] As a further description of the above technical solutions:
[0017] A collecting groove is formed in the inner wall of the U-shaped frame, and a feeding groove two is formed in the inner wall of the centrifugal impact pulverizer.
[0018] As a further description of the above technical solutions:
[0019] A handle is fixedly connected to the right side of the U-shaped frame, and a motor is fixedly connected to the front side of the auger conveyor.
[0020] As a further description of the above technical solutions:
[0021] The outer part of the auger conveyor is in contact with the inner wall of the partition plate, and the bottom end of the auger conveyor is fixedly connected to the inner wall of the bottom end of the shell.
[0022] The utility model has the advantages of the following beneficial effects:
[0023] 1. In the utility model, the electromagnetic block is used for adsorbing ferromagnetic impurities in the material through its own magnetic field, the material is preliminarily screened under the driving of the vibrator one through the screening net one, simultaneously, the light material such as dust and fine asphalt particle is blown up through starting the fan, is collected in the collecting groove in the U-shaped frame, the material separated is entered into the secondary screening box, is driven under the vibrator two, is screened twice through the three different aperture screening net two, thereby realizes the separation of the material through the electromagnetic block and the fan collection box cooperation, and the material is transported to the centrifugal impact crusher through the auger conveyor, and the material is separated, and the material separated is entered into the inside of the secondary screening box, thereby realizes the high efficiency and order of material flow, greatly improves the overall work efficiency, and the components are integrated in the same shell, and the structure is compact, saves the space, and is convenient for the installation, maintenance and management of equipment.
[0024] 2. In the utility model, the material preliminarily screened through the screening net one is preliminarily separated through the electromagnetic block and the fan collection box cooperation, and is transported to the centrifugal impact crusher through the auger conveyor, and the material is separated, and the material separated is entered into the inside of the secondary screening box, thereby realizes the high efficiency and order of material flow, greatly improves the overall work efficiency, and the components are integrated in the same shell, and the structure is compact, saves the space, and is convenient for the installation, maintenance and management of equipment. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a three-dimensional schematic view of the fine separation device of asphalt RAP material that the utility model proposes;
[0026] Figure 2 It is the structure schematic view of the partition plate of the fine separation device of asphalt RAP material that the utility model proposes;
[0027] Figure 3 It is the structure schematic view of the discharge hopper of the fine separation device of asphalt RAP material that the utility model proposes;
[0028] Figure 4 It is Figure 2 The enlarged view in A of the utility model.
[0029] Legend:
[0030] 1, shell;2, electromagnetic block;3, fan;4, U-shaped frame;5, vibrator one;6, screening net one;7, secondary screening box;8, screening net two;9, auger conveyor;10, centrifugal impact crusher;11, feed chute one;12, partition plate;13, feed hopper one;14, feed hopper two;15, discharge hopper;16, vibrator two;17, collecting groove;18, feed chute two;19, handle;20, motor. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0032] With reference to Figure 1 , Figure 2 and Figure 4 , the utility model provides an embodiment: a kind of fine separation device of asphalt RAP material, including shell 1, shell 1 provides installation space and the role of protection to internal element, the left side inner wall of shell 1 is fixedly connected with electromagnetic block 2, electromagnetic block 2 is installed in the vicinity of feed hopper one 13, by using the magnetic field generated by it attracts and adsorbs ferromagnetic impurities in material, to separate it from RAP material, ensure the normal operation of separation device and the purity of product, the bottom of shell 1 is fixedly connected with two fans 3, by starting fan 3, air forms stable airflow in separator, material is moved upwards by airflow under the action of airflow, such as dust, fine asphalt particles etc.
[0033] The inner wall of shell 1 is slidably connected with U-shaped frame 4, and the U-shaped frame 4 is slidably connected so that it can be removed for cleaning and maintenance. The front and rear inner walls of the shell 1 are fixedly connected with a vibrator one 5, respectively. The vibrator one 5 is the power source for the vibration screening of the screen one 6. The proximal side of the two vibrators one 5 is fixedly connected with the screen one 6. The screen one 6 is the primary screening of the entire separation device. The right side bottom end of the shell 1 is provided with a secondary screen box 7. The secondary screen box 7 is used for secondary vibration screening of the material crushed by the centrifugal impact crusher 10. The inner wall of the secondary screen box 7 is provided with a plurality of screen two 8. The screen two 8 is three, and the screen two 8 is 20mm, 10mm and 5mm, respectively. Through the three filter screens, the material can be screened into different particle size grades such as 20-10mm, 10-5mm and 5-0mm, realizing fine separation of coarse and fine materials. The bottom end inner wall of the shell 1 is fixedly connected with a portable assembly for the integration of the device.
[0034] With reference to Figure 1 and Figure 2The portable assembly includes an auger conveyor 9 for receiving the material after the preliminary screening of the screening net 1 and conveying it to the inside of the feeding groove 2, and preparing for the subsequent centrifugal impact crusher 10. The front and rear inner walls of the shell 1 are fixedly connected with the centrifugal impact crusher 10. The centrifugal impact crusher 10 can make the material fall off from the aggregate surface through impact, friction and other ways, so as to realize the separation of asphalt and relatively coarse RAP material, and prepare for the subsequent screening classification and asphalt recycling process. The inner wall of the auger conveyor 9 is provided with a feeding groove 1. After the preliminary screening of the screening net 1, the material is guided into the inside of the feeding groove 1 by the guide block, and then conveyed by the auger conveyor 9. The inner wall of the shell 1 is fixedly connected with a partition plate 12 for dividing the internal cavity 1 into two parts and providing fixation and support for the auger conveyor 9.
[0035] Referring to Figures 1 to 3 The top of the shell 1 is fixedly connected with a feeding hopper 1. The material is guided into the inside of the separation device through the feeding hopper 1. The top of the secondary screening box 7 is fixedly connected with a feeding hopper 2. The feeding hopper 2 can guide the material crushed by the centrifugal impact crusher 10 into the inside of the secondary screening box 7. The front side of the secondary screening box 7 is fixedly connected with a plurality of discharge hoppers 15 for conveying different specifications of materials to the outside and preparing for the subsequent process. The discharge hoppers 15 are in contact with the inner wall of the shell 1, and the shell 1 provides fixation and support for the discharge hoppers 15. The front and rear inner walls of the secondary screening box 7 are respectively fixedly connected with a plurality of vibrators 2. The vibrators 2 are the power source of the screening net 2.
[0036] The front and rear sides of one of the screening nets 2 are respectively fixedly connected on the same side of two of the vibrators 2. The screening net 2 vibrates and screens under the force from the vibrators 2, and then prepares for the subsequent process. The inner wall of the U-shaped frame 4 is provided with a collection groove 17. The lighter asphalt and dust are lifted by the wind, and then collected by the collection groove 17. The inner wall of the centrifugal impact crusher 10 is provided with a feeding groove 2. The material conveyed by the auger conveyor 9 is conveyed into the inside of the feeding groove 2, and then into the inside of the centrifugal impact crusher 10. The right side of the U-shaped frame 4 is fixedly connected with a handle 19. The handle 19 is convenient for the operator to take down the U-shaped frame 4, take out the asphalt in the collection groove 17 for recycling, and then clean and maintain the U-shaped frame 4.
[0037] The front side of the auger conveyor 9 is fixedly connected with a motor 20. The motor 20 is the power source of the auger conveyor 9. The outer surface of the auger conveyor 9 is in contact with the inner wall of the partition plate 12. The partition plate 12 provides fixation and support for the auger conveyor 9. The bottom end of the auger conveyor 9 is fixedly connected to the bottom inner wall of the shell 1. The shell 1 provides fixation and support for the auger conveyor 9.
[0038] Working principle: in use, through the hopper one 13 RAP asphalt material into the separation device, electromagnetic block 2 by using its own magnetic field adsorption of ferromagnetic impurities in the material, to ensure that the material is pure, the material is screened under the action of the vibrator one 5 preliminary screening, larger particles remain above the screen, smaller particles through the screen into the lower, at the same time, by starting the fan 3, make the separation device inside the formation of stable airflow, dust, fine asphalt particles and other light material is blown up, by the U-shaped frame 4 in the collection tank 17 collection, heavy material then sinks, then, the material after preliminary screening by the auger conveyor 9 through the feed tank one 11, feed tank two 18 into the centrifugal impact crusher 10, the material in which through the impact, friction makes the asphalt from the aggregate surface off, realize the separation of asphalt and RAP material.
[0039] The material after separation into the secondary screening box 7, under the action of the vibrator two 16, through three different aperture 20mm, 10mm and 5mm screening net two 8 secondary vibration screening, is accurately screened into 20-10mm, 10-5mm, 5-0mm and other different particle size material, and through the discharge hopper 15 sent out, the whole device parts work together, from the feed, impurity removal, screening, separation to re-screening, realize the fine separation of asphalt RAP material, and has the integrated smooth work flow, effectively improve the separation efficiency and quality.
[0040] Finally, it should be noted that: the above described only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A fine separation device for asphalt RAP material, comprising a shell (1), characterized in that: An electromagnetic block (2) is fixedly connected to the inner wall of the left side of the housing (1). Two fans (3) are fixedly connected to the bottom of the housing (1). A U-shaped frame (4) is slidably connected to the inner wall of the housing (1). Vibrators (5) are fixedly connected to the inner walls of the front and rear sides of the housing (1). Screening mesh (6) is fixedly connected to the adjacent side of the two vibrators (5). A secondary screen box (7) is provided at the bottom right side of the housing (1). Multiple screening meshes (8) are provided on the inner wall of the secondary screen box (7). A portable component for easy integration of the device is fixedly connected to the inner wall of the bottom end of the housing (1).
2. The fine separation device for asphalt RAP material according to claim 1, characterized in that: The portable component includes an auger conveyor (9), centrifugal impact crusher (10) is fixedly connected to the inner walls of the front and rear sides of the housing (1), a feed trough (11) is opened on the inner wall of the auger conveyor (9), and a partition plate (12) is fixedly connected to the inner wall of the housing (1).
3. The fine separation device for asphalt RAP material according to claim 1, characterized in that: The top of the shell (1) is fixedly connected to a feed hopper one (13), and the top of the secondary screen box (7) is fixedly connected to a feed hopper two (14).
4. The fine separation device for asphalt RAP material according to claim 1, characterized in that: The front side of the secondary screen box (7) is fixedly connected with a plurality of discharge hoppers (15), and the outside of the discharge hoppers (15) is in contact with the inner wall of the shell (1).
5. The fine separation device for asphalt RAP material according to claim 1, characterized in that: The inner walls of the front and rear sides of the secondary screen box (7) are respectively fixedly connected to multiple vibrators (16), and the front and rear sides of one of the screening screens (8) are respectively fixedly connected to the adjacent side of two of the vibrators (16).
6. The fine separation device for asphalt RAP material according to claim 2, characterized in that: The inner wall of the U-shaped frame (4) is provided with a collection groove (17), and the inner wall of the centrifugal impact crusher (10) is provided with a feeding groove (18).
7. The fine separation device for asphalt RAP material according to claim 2, characterized in that: A handle (19) is fixedly connected to the right side of the U-shaped frame (4), and a motor (20) is fixedly connected to the front side of the auger conveyor (9).
8. The fine separation device for asphalt RAP material according to claim 2, characterized in that: The outside of the auger conveyor (9) is in contact with the inner wall of the partition plate (12), and the bottom end of the auger conveyor (9) is fixedly connected to the bottom inner wall of the housing (1).