Refining oil-stone separation device for old asphalt milling material

Abstract

The utility model relates to the technical field of old asphalt treatment equipment, in particular to an old asphalt milling material refining oilstone separation device which comprises a screening box, a crushing box is fixedly connected to the left side of the upper surface of the screening box, two groups of crushing rollers are arranged in the crushing box, and a jaw crusher is arranged on the left side of the screening box. The discharging end of the jaw crusher is fixedly connected with a spiral conveying pipe, the right end of the spiral conveying pipe is fixedly connected with the upper end of the crushing box, a screening assembly is arranged in the screening box, and the screening assembly comprises a first screening plate, a first vibrator, a fine separation box, a flow guide plate, a second screening plate, a third screening plate, a material receiving plate and a second vibrator; asphalt blocks are pre-crushed through the jaw crusher, then secondary crushing is conducted through the crushing box, the crushing precision of the asphalt blocks is effectively improved, then the crushed asphalt is finely screened through the first screen plate, the second screen plate and the third screen plate, asphalt particles with different precisions are separated, and the separation effect of the asphalt particles is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to old asphalt processing equipment technical field, concretely relates to an old asphalt milling material fine oil stone separation device. BACKGROUND

[0002] In the road construction industry, with the enhancement of environmental awareness and the progress of technology, the recycling of old asphalt mixture has become one of the research hotspots. Recycling old asphalt milling material not only can save a lot of natural resources, reduce environmental pollution, but also can effectively reduce the engineering cost.

[0003] Among them, the publication number CN221989061U discloses a kind of high-pressure water jet auxiliary asphalt pavement milling and oil stone separation device and method, by high-pressure water jet to road surface before milling cutter contact road surface, therefore road surface material is more easily broken in the process of milling, greatly reduce the stress of milling cutter, prolong the service life of milling cutter, can greatly reduce maintenance cost in construction, while shorten maintenance time, save construction period.

[0004] In actual use process, waste is sent into crushing roller for crushing, then falls to screen surface, carries out oil stone separation, but crushing roller in the process of crushing, will be broken into different size particles, different size asphalt particles separate at different speeds, when separating together, part of asphalt particles without oil stone separation will be discharged from the same outlet with separated asphalt particles, separation fine degree is lower, affect subsequent asphalt recycling effect.

[0005] Therefore, it is necessary to invent an old asphalt milling material fine oil stone separation device to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model aims at providing an old asphalt milling material fine oil stone separation device to solve the problem of low separation fine degree in the art, which affects the subsequent asphalt recycling effect.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: an old asphalt milling material fine oil stone separation device, including screening box, the left side of the upper surface of screening box is fixedly connected with crushing box, the inside of crushing box is provided with two groups of crushing rollers, the left side of screening box is provided with jaw crusher, the discharge end of jaw crusher is fixedly connected with screw conveying pipe, the right end of screw conveying pipe is fixedly connected with the upper end of crushing box, the inside of screening box is provided with screening assembly, and screening assembly includes first sieve plate, first vibrator, fine separation box, flow guide plate, second sieve plate, third sieve plate, material receiving plate and second vibrator.

[0008] By adopting the technical scheme, the recycled asphalt blocks are pre-broken into small pieces by the jaw crusher, and then the small pieces are transported into the crushing box by the spiral conveying pipe for secondary crushing, so that the crushing precision of the asphalt blocks is effectively improved, and then the crushed asphalt is finely screened by the first sieve plate, the second sieve plate and the third sieve plate, so that the screening precision of the asphalt is improved, and the asphalt particles with different precisions are separated, and the utilization effect of the asphalt is improved.

[0009] Optionally, the lower surface of the first sieve plate is fixedly connected with a plurality of first springs, the lower end of the first spring is fixedly connected with the inner bottom wall of the screening box, and the first vibrator is fixedly installed at the middle position of the lower surface of the first sieve plate.

[0010] By adopting the technical scheme, the first vibrator drives the first sieve plate to vibrate to perform the first screening on the crushed asphalt.

[0011] Optionally, the left half of the first sieve plate is provided with a water filter net, the right half of the first sieve plate is provided with a coarse sieve net, the lower surface of the screening box is fixedly connected with a water collecting box on the left side, and the fine screening box is fixedly connected with the right side of the lower surface of the screening box.

[0012] By adopting the technical scheme, the aperture of the coarse sieve net is 5 mm, and the waste with an efficiency of 5 mm in the crushed asphalt falls into the fine screening box through the coarse sieve net.

[0013] Optionally, the second sieve plate, the third sieve plate and the receiving plate are arranged in the fine screening box, the surface of the second sieve plate is provided with a medium sieve net, the surface of the third sieve plate is provided with a fine sieve net, and the front side of the second sieve plate, the third sieve plate and the receiving plate is provided with a conveyor belt.

[0014] By adopting the technical scheme, the aperture of the medium sieve net is 3 mm, and the aperture of the fine sieve net is 1 mm, so that the asphalt is subjected to multi-stage screening, the screening precision of the asphalt is improved, the utilization rate of the asphalt is improved, and the conveyor belt is used to discharge the screened asphalt.

[0015] Optionally, the left and right sides of the second sieve plate, the third sieve plate and the receiving plate are fixedly connected with a plurality of connecting blocks, the first connecting rod is fixedly connected between the upper and lower groups of connecting blocks, and the second vibrator is fixedly installed on the lower surface of the receiving plate.

[0016] By adopting the technical scheme, the vibrator drives the second sieve plate, the third sieve plate and the receiving plate to vibrate and screen at the same time.

[0017] Optionally, the left and right inner walls of the fine classification box are fixedly connected with a guide plate near the upper end, the lower surface of the guide plate is fixedly connected with a plurality of second connecting rods, the lower ends of the plurality of second connecting rods are fixedly connected with a second spring, and the lower ends of the plurality of second springs are fixedly connected with the uppermost connecting blocks.

[0018] By adopting the above technical scheme, the guide plate is used to guide the asphalt screened by the first sieve plate to the surface of the second sieve plate, so that the asphalt is prevented from scattering.

[0019] Optionally, the right end of the classification box is fixedly connected with a coarse material box, the right side of the coarse material box is fixedly connected with a reflux pipeline, the upper end of the reflux pipeline is fixedly connected with the crushing box, and the lower end of the coarse material box is fixedly connected with a sealing plate.

[0020] By adopting the above technical scheme, the asphalt particles with a diameter greater than 5 mm fall through the first sieve plate into the coarse material box on the right, the sealing plate is opened, the oversized asphalt particles can be directly discharged, and when more asphalt particles with a diameter less than 5 mm are needed, the oversized asphalt particles in the coarse material box are re-conveyed to the crushing box through the reflux pipeline for crushing again.

[0021] Optionally, the right side of the upper surface of the classification box is fixedly connected with a water tank, the upper surface of the water tank is fixedly installed with two groups of water pumps, the water outlet of the water pump is fixedly connected with a guide pipe, the surface of the guide pipe is fixedly connected with a plurality of atomizing nozzles, and the atomizing nozzles extend through the upper wall of the crushing box to the inside of the crushing box.

[0022] By adopting the above technical scheme, the water pump pumps the water in the water tank, the water is sprayed into the crushing box through the atomizing nozzles, the inside of the crushing box and the crushing roller are cooled, and the asphalt particles are prevented from sticking together again due to high temperature.

[0023] In the above technical scheme, the technical effects and advantages of the utility model are as follows:

[0024] 1. The utility model discloses a jaw crusher is used to the asphalt block of recycling and carries out pre-crushing, and the asphalt block is crushed into small pieces, and then the spiral conveying pipe is used to convey the asphalt block to the inside of the crushing box for secondary crushing, so that the crushing precision of the asphalt block is effectively improved, then the first sieve plate, the second sieve plate and the third sieve plate are used to finely screen the crushed asphalt, the precision of the asphalt screening is improved, and the utilization effect of the asphalt is improved.

[0025] 2. The utility model discloses that the oversized asphalt particles are stored in the coarse material box, when more asphalt particles with a diameter less than 5 mm are needed, the oversized asphalt particles in the coarse material box are re-conveyed to the crushing box through the reflux pipeline for crushing again, so that the yield of the asphalt particles with a diameter less than 5 mm is improved, the yield of the asphalt particles is regulated, and the equipment use convenience is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the whole structure schematic diagram of the utility model;

[0027] Figure 2 It is the internal structure schematic diagram of the utility model;

[0028] Figure 3 It is the broken case internal structure schematic diagram of the utility model;

[0029] Figure 4 It is the screening case structure schematic diagram of the utility model;

[0030] Figure 5 It is the first sieve plate structure schematic diagram of the utility model;

[0031] Figure 6 It is the fine division case structure schematic diagram of the utility model.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1, screening case;11, first sieve plate;14, first vibrator;15, first spring;16, water collecting box;17, coarse material box;18, backflow pipeline;19, sealing plate;2, broken case;21, broken roller;23, water tank;24, water pump;25, flow guide pipe;26, atomizing nozzle;3, jaw crusher;31, spiral conveying pipe;4, fine division case;41, flow guide plate;42, second sieve plate;43, third sieve plate;44, material receiving plate;45, connecting block;46, first connecting rod;47, second spring;48, second connecting rod;49, second vibrator;5, conveying belt. DETAILED DESCRIPTION

[0034] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in detail below in conjunction with the drawings.

[0035] The utility model provides a Figures 1 to 6The shown one old asphalt milling material fine oil stone separation device, including screening box 1, the left side of the upper surface of screening box 1 is fixedly connected with broken box 2, two groups of broken rollers 21 are arranged in the inside of broken box 2, the left side of screening box 1 is provided with jaw crusher 3, the discharge end of jaw crusher 3 is fixedly connected with screw conveying pipe 31, the right end of screw conveying pipe 31 is fixedly connected with the upper end of broken box 2, the right side of the upper surface of screening box 1 is fixedly connected with water tank 23, two groups of water pumps 24 are fixedly installed on the upper surface of water tank 23, the water outlet of water pump 24 is fixedly connected with flow guide pipe 25, a plurality of atomizing nozzles 26 are fixedly connected on the surface of flow guide pipe 25, atomizing nozzles 26 extend through the upper wall of broken box 2 to the inside thereof, a screening assembly is arranged in the inside of screening box 1, and the screening assembly comprises first sieve plate 11, first vibrator 14, fine screening box 4, flow guide plate 41, second sieve plate 42, third sieve plate 43, material receiving plate 44 and second vibrator 49.

[0036] Wherein, the broken roller 21 is driven to rotate by the motor, and the two groups of broken rollers 21 are driven to rotate oppositely to crush the asphalt block through the cooperation of the two groups of transmission gears on the front side. In use, first, the large asphalt block is put into the inside of the jaw crusher 3, and the large asphalt block is pre-crushed into small pieces by the jaw crusher 3, then the small asphalt block is conveyed into the inside of the broken box 2 through the screw conveying pipe 31, at this time, the small asphalt block is crushed again by the two groups of broken rollers 21 in the inside of the broken box 2, the crushing efficiency of the old asphalt is improved, and the old asphalt is crushed into smaller particles, at this time, the first sieve plate 11 is vibrated by the first vibrator 14, and the second sieve plate 42, the third sieve plate 43 and the material receiving plate 44 are vibrated by the second vibrator 49, the crushed asphalt particles are finely divided, the asphalt particles are divided into multiple levels, the asphalt particles of different accuracy are separated respectively, and the separation effect of the asphalt particles is improved.

[0037] In addition, in the process of crushing the asphalt, the water pump 24 sucks the water in the inside of the water tank 23 into the inside of the flow guide pipe 25, then the water is sprayed into the inside of the broken box 2 by the plurality of atomizing nozzles 26, the broken rollers 21 and the asphalt particles in the inside of the broken box 2 are cooled, and the asphalt particles are prevented from sticking together due to high temperature.

[0038] Reference Figures 3 to 5The lower surface of the first sieve plate 11 is fixedly connected with a plurality of first springs 15, the lower end of the first spring 15 is fixedly connected with the inner bottom wall of the screening box 1, the first vibrator 14 is fixedly installed at the middle position of the lower surface of the first sieve plate 11, the left half of the first sieve plate 11 is provided with a water filter net, the right half of the first sieve plate 11 is provided with a coarse sieve net, the left side of the lower surface of the screening box 1 is fixedly connected with a water collecting box 16, the fine screening box 4 is fixedly connected with the right side of the lower surface of the screening box 1, the right end of the screening box 1 is fixedly connected with a coarse material box 17, the right side of the coarse material box 17 is fixedly connected with a backflow pipeline 18, the upper end of the backflow pipeline 18 is fixedly connected with the crushing box 2, and the lower end of the coarse material box 17 is fixedly connected with a sealing plate 19.

[0039] Specifically, the first vibrator 14 drives the first sieve plate 11 to vibrate to screen the just crushed asphalt particles. The crushed asphalt particles first fall to the surface of the water filter net. With the vibration of the first sieve plate 11, the water stains on the surface of the asphalt are shaken off and fall through the water filter net into the water collecting box 16, so as to avoid that the damp asphalt is adhered to the surface of the sieve plate. At the same time, the dust in the crushing process flows to the water collecting box 16 under the action of the water flow, so as to improve the cleanliness of the asphalt particles. Then, the asphalt particles pass through the coarse sieve net. At this time, the particles smaller than 5mm in the asphalt particles fall into the fine screening box 4, while the particles larger than 5mm continue to slide to the right and are discharged into the coarse material box 17 for temporary storage. When the internal material is relatively full, the sealing plate 19 can be opened to discharge the internal coarse material. When the demand for particles smaller than 5mm is relatively large, the coarse material in the coarse material box 17 can be backflowed to the crushing box 2 through the backflow pipeline 18 to be crushed again, so as to facilitate the adjustment of the yield of fine particles.

[0040] Referring to Figure 4 and Figure 6 The second sieve plate 42, the third sieve plate 43 and the material receiving plate 44 are arranged in the interior of the fine screening box 4. The surface of the second sieve plate 42 is provided with a medium sieve net, the surface of the third sieve plate 43 is provided with a fine sieve net, the front sides of the second sieve plate 42, the third sieve plate 43 and the material receiving plate 44 are provided with the conveying belt 5, the left and right sides of the second sieve plate 42, the third sieve plate 43 and the material receiving plate 44 are fixedly connected with a plurality of connecting blocks 45, the first connecting rod 46 is fixedly connected between the upper and lower two groups of connecting blocks 45, the second vibrator 49 is fixedly installed at the lower surface of the material receiving plate 44, the left and right inner walls of the fine screening box 4 are fixedly connected with the flow guide plate 41 near the upper end, the lower surface of the flow guide plate 41 is fixedly connected with a plurality of second connecting rods 48, the lower end of the plurality of second connecting rods 48 is fixedly connected with the second spring 47, and the lower end of the plurality of second springs 47 is fixedly connected with the uppermost group of connecting blocks 45.

[0041] Meanwhile, the particles less than 5mm are collected to the surface of the second sieve plate 42 by the guide plates 41 during the falling process, the second vibrator 49 drives the second sieve plate 42, the third sieve plate 43 and the receiving plate 44 to vibrate, at this time, the particles with diameter greater than 3mm are retained on the surface of the second sieve plate 42 and discharged to the surface of the front conveying belt 5, the particles with diameter less than 3mm fall to the surface of the third sieve plate 43, then the particles with diameter greater than 1mm are retained on the surface of the third sieve plate 43 and discharged to the surface of the front conveying belt 5, the particles with diameter less than 1mm fall to the surface of the receiving plate 44 and are discharged to the surface of the front conveying belt 5.

[0042] The utility model discloses a working principle: utilize jaw crusher 3 to the asphalt block of recycling and carry out prebreak, break into small pieces, then utilize screw feed pipe 31 and transport to the inside of crushing box 2 and carry out secondary breakage, effectively improve the breakage precision of asphalt block, then pass through first sieve plate 11, second sieve plate 42 and third sieve plate 43 and carry out fine screening to the broken asphalt, improve the precision of asphalt screening, and the asphalt particles of different precision are separated respectively, improve the separation effect of asphalt particle, simultaneously, when needing more diameter less than 5mm asphalt particle, through the return pipe 18, the super large particle asphalt in coarse material box 17 is transported to crushing box 2 again and breaks, convenient for improving the output of diameter less than 5mm asphalt particle, convenient for the output of asphalt particle and carry out regulation, further improve the equipment use convenience.

[0043] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model. Without departing from the spirit and scope of the utility model, various changes and improvements can be made to the utility model, and these changes and improvements fall within the scope of the claimed utility model.

Claims

1. A device for fine separation of oil and stone from old asphalt milled material, comprising a screening box (1), characterized in that: The left side of the upper surface of the screening box (1) is fixedly connected with a crushing box (2), the inside of the crushing box (2) is provided with two groups of crushing rollers (21), the left side of the screening box (1) is provided with a jaw crusher (3), the discharge end of the jaw crusher (3) is fixedly connected with a spiral conveying pipe (31), the right end of the spiral conveying pipe (31) is fixedly connected with the upper end of the crushing box (2), the inside of the screening box (1) is provided with a screening assembly, and the screening assembly comprises a first sieve plate (11), a first vibrator (14), a fine screening box (4), a guide plate (41), a second sieve plate (42), a third sieve plate (43), a receiving plate (44) and a second vibrator (49).

2. The device for separating fine oil and stone from old asphalt milling material according to claim 1, characterized in that: The lower surface of the first sieve plate (11) is fixedly connected with a plurality of first springs (15), the lower end of the first spring (15) is fixedly connected with the inner bottom wall of the screening box (1), and the first vibrator (14) is fixedly installed at the middle position of the lower surface of the first sieve plate (11).

3. The device for separating fine oil from old asphalt milled material according to claim 2, characterized in that: The left half of the first sieve plate (11) is provided with a water filter net, the right half of the first sieve plate (11) is provided with a coarse sieve net, the left side of the lower surface of the screening box (1) is fixedly connected with a water collecting box (16), and the fine screening box (4) is fixedly connected with the right side of the lower surface of the screening box (1).

4. The device for separating fine oil and stone from old asphalt milling material according to claim 1, characterized in that: The second sieve plate (42), the third sieve plate (43) and the receiving plate (44) are all arranged in the inside of the fine screening box (4), the surface of the second sieve plate (42) is provided with a medium sieve net, the surface of the third sieve plate (43) is provided with a fine sieve net, and the front sides of the second sieve plate (42), the third sieve plate (43) and the receiving plate (44) are all provided with a conveyor belt (5).

5. The device for separating fine oil from old asphalt milled material according to claim 4, characterized in that: The left and right sides of the second sieve plate (42), the third sieve plate (43) and the receiving plate (44) are all fixedly connected with a plurality of connecting blocks (45), a first connecting rod (46) is fixedly connected between the upper and lower groups of connecting blocks (45), and the second vibrator (49) is fixedly installed on the lower surface of the receiving plate (44).

6. The device for separating fine oil from old asphalt milled material according to claim 5, characterized in that: The left and right side inner walls of the fine screening box (4) are all fixedly connected with guide plates (41) close to the upper end, the lower surface of the guide plate (41) is fixedly connected with a plurality of second connecting rods (48), the lower end of the plurality of second connecting rods (48) is all fixedly connected with a second spring (47), and the lower end of the plurality of second springs (47) is fixedly connected with the uppermost group of connecting blocks (45).

7. The device according to claim 1, characterized in that: The right end of the screening box (1) is fixedly connected with a coarse material box (17), the right side of the coarse material box (17) is fixedly connected with a backflow pipeline (18), the upper end of the backflow pipeline (18) is fixedly connected with the crushing box (2), and the lower end of the coarse material box (17) is fixedly connected with a sealing plate (19).

8. The device for separating fine old asphalt milling material from oil stone according to claim 1, characterized in that: The right side of the upper surface of the screening box (1) is fixedly connected with a water tank (23), the upper surface of the water tank (23) is fixedly installed with two groups of water pumps (24), the water outlet end of the water pump (24) is fixedly connected with a flow guide pipe (25), the surface of the flow guide pipe (25) is fixedly connected with a plurality of atomizing nozzles (26), and the atomizing nozzle (26) extends to the inside of the crushing box (2) through the upper wall of the crushing box (2).

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