Fine separation equipment for pavement asphalt reclaimed materials

Abstract

The utility model relates to the technical field of asphalt pavement recycled material separation equipment, in particular to pavement asphalt recycled material fine separation equipment which comprises a laminated frame and a raw material bin arranged on one side of the laminated frame. A feeding belt conveyor is arranged between the raw material bin and the aggregate elevator, the discharging end of the feeding belt conveyor is connected with a pretreatment linear vibrating screen, the pretreatment linear vibrating screen is provided with a large-particle-size discharging port and a medium-particle-size discharging port, and a pretreatment flexible double-roller crusher is arranged below the large-particle-size discharging port; a vertical shaft type stripping machine, a first-stage linear vibrating screen, a second-stage high-frequency probability screen and a finished product belt conveyor are sequentially arranged on the laminated frame from top to bottom. The pavement asphalt reclaimed material fine separation equipment disclosed by the utility model can be used for performing multi-stage fine screening on asphalt pavement old materials, and is beneficial to ensuring the stable quality of asphalt mixtures during subsequent processing and reutilization.

Description

Technical Field

[0001] The utility model relates to the technical field of road asphalt recycling equipment, in particular to a fine separation equipment for recycled road asphalt materials. Background Art

[0002] With the rapid development and construction of roads in recent decades, a large number of existing road surfaces have entered the stage of reconstruction and renovation. The old materials of road asphalt pavements need to be recycled through reasonable methods, which can save a large amount of construction raw material costs and effectively avoid material waste and environmental pollution. Currently, the common method is to hit the recycled asphalt old materials through a counterattack type or a hammer crushing type, etc., and then enter a low-grade screening system. This hammering method relatively roughly screens the particle size of the materials and cannot finely separate the raw materials, resulting in problems of quality fluctuations in asphalt mixtures when the RAP content in asphalt plant hot recycling is too high. Summary of the Utility Model

[0003] To overcome the technical defects existing in the prior art, the utility model provides a fine separation equipment for recycled road asphalt materials, which can perform multi-stage fine screening on the old materials of asphalt pavements to obtain better graded materials, and effectively solves the problem of quality fluctuations in asphalt mixtures when the RAP content in asphalt plant hot recycling is too high.

[0004] The technical solution adopted by the utility model is as follows: The fine separation equipment for recycled road asphalt materials includes a laminated frame and a raw material bin arranged on one side of the laminated frame. One end of the laminated frame is provided with an aggregate elevator. An upper feeding belt conveyor is arranged between the raw material bin and the aggregate elevator. A magnet belt conveyor is arranged above the upper feeding belt conveyor. The discharging end of the upper feeding belt conveyor is connected with a pre-treatment linear vibrating screen. The pre-treatment linear vibrating screen has a large particle size discharging port and a medium particle size discharging port. A pre-treatment flexible pair-roll crusher is arranged below the large particle size discharging port. An inlet belt conveyor is arranged below the pre-treatment flexible pair-roll crusher and the pre-treatment linear vibrating screen. The feeding port of the aggregate elevator is connected below the discharging end of the inlet belt conveyor;

[0005] A vertical shaft type peeling machine, a first-stage linear vibrating screen, a second-stage high-frequency probability screen and a finished product belt conveyor are sequentially arranged on the laminated frame from top to bottom. The vertical shaft type peeling machine is connected to the discharging port of the aggregate elevator. The first-stage linear vibrating screen is connected to the discharging port of the vertical shaft type peeling machine. The first-stage linear vibrating screen can perform three-stage screening and output three kinds of particle size materials of large, medium and small. The large particle size materials are conveyed to the inlet belt conveyor through an oversize material belt conveyor. The small particle size materials are conveyed to the second-stage high-frequency probability screen. The second-stage high-frequency probability screen can further screen the small particle size materials into three kinds of particle size materials and output them.

[0006] Preferably, a filter grid is installed at the upper end of the raw material bin through a shock pad, and a vibration motor is provided at the lower end of the filter grid.

[0007] Preferably, a discharge port is provided at the bottom of the raw material bin, a variable-frequency belt conveyor is installed below the discharge port, and the feeding end of the feeding belt conveyor is connected to the discharging end of the variable-frequency belt conveyor.

[0008] Preferably, the first-stage linear vibrating screen can output materials with a particle size less than 8 mm and convey them to the second-stage high-frequency probability screen, and the first-stage linear vibrating screen can output materials with a particle size greater than 25 mm and convey them to the oversize material belt conveyor. Materials with a particle size between 8 mm and 25 mm are discharged through the discharge chute.

[0009] Preferably, the second-stage high-frequency probability screen has three material discharge ports, and a finished product belt conveyor is arranged at each material discharge port.

[0010] Preferably, a pulse jet bag filter is provided on the laminated frame, a dust suction pipe is provided at the smoke inlet of the pulse jet bag filter, and the dust suction pipe is connected to the first-stage linear vibrating screen and the vertical shaft peeling machine.

[0011] The beneficial effects of the present utility model are as follows: The refined separation equipment for recycled pavement asphalt materials of the present utility model can crush and screen the old asphalt materials and output finished products with various particle sizes, which is beneficial to ensuring the quality stability of the asphalt mixture during subsequent processing and reuse. Description of the Drawings

[0012] Figure 1 is a structural schematic diagram of the refined separation equipment for recycled pavement asphalt materials of the present utility model Figure 1 。

[0013] Figure 2 is a structural schematic diagram of the refined separation equipment for recycled pavement asphalt materials of the present utility model Figure 2 。

[0014] Figure 3 is Figure 1 a partial enlarged view of part A in

[0015] Description of the reference numerals: 1. Raw material bin; 2. Feeding belt conveyor; 3. Magnet belt conveyor; 4. Pretreatment linear vibrating screen; 5. Pretreatment flexible pair-roll crusher; 6. Feeding belt conveyor; 7. Aggregate elevator; 8. Vertical shaft peeling machine; 9. First-stage linear vibrating screen; 10. Second-stage high-frequency probability screen; 11. Finished product belt conveyor; 12. Oversize material belt conveyor; 13. Pulse jet bag filter; 131. Dust suction pipe; 14. Laminated frame. Detailed Description of the Preferred Embodiments

[0016] The present utility model will be further described below in conjunction with the accompanying drawings:

[0017] As Figures 1 to 3 shown, this embodiment provides a fine separation device for road surface asphalt recycling materials, including a laminated frame 14 and a raw material bin 1 provided on one side of the laminated frame 14. An aggregate elevator 7 is provided at one end of the laminated frame 14. An upper feeding belt conveyor 2 is provided between the raw material bin 1 and the aggregate elevator 7. A magnet belt conveyor 3 is provided above the upper feeding belt conveyor 2. The discharging end of the upper feeding belt conveyor 2 is connected to a pre-treatment linear vibrating screen 4. The pre-treatment linear vibrating screen 4 has a large particle size discharging port and a medium particle size discharging port. A pre-treatment flexible pair-roll crusher 5 is provided below the large particle size discharging port. An inlet feeding belt conveyor 6 is provided below the pre-treatment flexible pair-roll crusher 5 and the pre-treatment linear vibrating screen 4. The feeding port of the aggregate elevator 7 is connected below the discharging end of the inlet feeding belt conveyor 6.

[0018] The pre-treatment linear vibrating screen 4 of this embodiment cooperates with the pre-treatment flexible pair-roll crusher 5 to screen and crush the materials. The large particle size materials enter the pre-treatment flexible pair-roll crusher 5 for rubbing and crushing separation. After crushing, they and the medium particle size materials enter the inlet feeding belt conveyor 6. The magnet belt conveyor 3 extracts the iron products in the raw materials to prevent the iron products in the raw materials from damaging the equipment.

[0019] An upright shaft type peeling machine 8, a primary linear vibrating screen 9, a secondary high-frequency probability screen 10 and a finished product belt conveyor 11 are successively provided on the laminated frame 14 from top to bottom. The upright shaft type peeling machine 8 is connected to the discharging port of the aggregate elevator 7. The primary linear vibrating screen 9 is connected to the discharging port of the upright shaft type peeling machine 8. The primary linear vibrating screen 9 can perform three-stage screening and output materials of three particle sizes: large, medium and small. The large particle size materials are conveyed to the inlet feeding belt conveyor 6 through an oversize material belt conveyor 12. The small particle size materials are conveyed to the secondary high-frequency probability screen 10. The secondary high-frequency probability screen 10 can further screen the small particle size materials into three particle size materials and output them. After the large particle size materials reach the inlet feeding belt conveyor 6, they enter the operation processes of lifting, peeling and screening again to ensure that the materials can be fully processed.

[0020] In this embodiment, a filter grid is installed at the upper end of the raw material bin 1 through a shock pad, and a vibration motor is provided at the lower end of the filter grid. The materials on the filter grid can be quickly separated through vibration.

[0021] In this embodiment, a discharging port is provided at the bottom of the raw material bin 1, and a variable frequency belt conveyor is installed below the discharging port. The feeding end of the upper feeding belt conveyor 2 is connected to the discharging end of the variable frequency belt conveyor, and the variable frequency belt conveyor adjusts the conveying amount of the materials.

[0022] In this embodiment, the primary linear vibrating screen 9 can output materials with a particle size less than 8 mm and convey them to the secondary high-frequency probability screen 10, and the primary linear vibrating screen 9 can output materials with a particle size greater than 25 mm and convey them to the oversize material belt conveyor 12. Materials with a particle size between 8 mm and 25 mm are discharged through the discharge chute.

[0023] In this embodiment, the secondary high-frequency probability screen 10 has three material discharge outlets, and a finished product belt conveyor 11 is provided at each material discharge outlet.

[0024] In this embodiment, a pulse jet bag filter 13 is provided on the laminated frame 14. A dust suction pipe 131 is provided at the smoke inlet of the pulse jet bag filter 13, and the dust suction pipe 131 is connected to the primary linear vibrating screen 9 and the vertical shaft type peeling machine 8.

[0025] The refined separation equipment for road asphalt recycled materials in this embodiment can crush and screen the old asphalt materials and output finished materials with various particle sizes, which is beneficial for subsequent asphalt plant hot recycling and ensures the quality stability of asphalt mixtures when the RAP content is too high.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention and the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present invention, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. The equipment for fine separation of recycled asphalt road surface is characterized by: It comprises a laminated frame and a raw material silo arranged on one side of the laminated frame, an aggregate elevator is arranged at one end of the laminated frame, a feeding belt conveyor is arranged between the raw material silo and the aggregate elevator, a magnet belt conveyor is arranged above the feeding belt conveyor, a pre-treatment linear vibrating screen is connected to the discharge end of the feeding belt conveyor, the pre-treatment linear vibrating screen has a large particle size discharge port and a medium particle size discharge port, a pre-treatment flexible double roller crusher is arranged below the large particle size discharge port, a feeding belt conveyor is arranged below the pre-treatment flexible double roller crusher and the pre-treatment linear vibrating screen, and the feed port of the aggregate elevator is connected below the discharge end of the feeding belt conveyor; A vertical shaft stripping machine, a first-level linear vibrating screen, a second-level high-frequency probability screen and a finished product belt conveyor are arranged on the laminated frame from top to bottom. The vertical shaft stripping machine is connected to the discharge port of the aggregate elevator, and the first-level linear vibrating screen is connected to the discharge port of the vertical shaft stripping machine. The first-level linear vibrating screen can perform three-level screening and output materials of three particle sizes: large, medium and small. The large particle size materials are transported to the feed belt conveyor through the over-limit material belt conveyor, and the small particle size materials are transported to the second-level high-frequency probability screen. The second-level high-frequency probability screen can further screen the small particle size materials into three particle size materials and output them.

2. The equipment for fine separation of recycled asphalt road surface materials according to claim 1, characterized in that: A filter grid is installed at the upper end of the raw material silo through a shock-absorbing pad, and a vibration motor is provided at the lower end of the filter grid.

3. The equipment for fine separation of recycled road asphalt according to claim 1, characterized in that: A discharge port is provided at the bottom of the raw material silo, a variable frequency belt conveyor is installed below the discharge port, and the feed end of the loading belt conveyor is connected to the discharge end of the variable frequency belt conveyor.

4. The equipment for fine separation of recycled road asphalt according to claim 1, characterized in that: The first-stage linear vibrating screen can output materials with a particle size less than 8 mm and transport them to the second-stage high-frequency probability screen, and the first-stage linear vibrating screen can output materials with a particle size greater than 25 mm and transport them to the over-limit material belt conveyor. Materials with a particle size between 8 mm and 25 mm are discharged through the discharge chute.

5. The equipment for fine separation of recycled asphalt road surface materials according to claim 1, characterized in that: The secondary high-frequency probability screen has three material discharge outlets, and each of the material discharge outlets is provided with a finished product belt conveyor.

6. The equipment for fine separation of recycled road asphalt according to claim 1, characterized in that: A pulse bag dust collector is arranged on the laminated frame, a smoke inlet of the pulse bag dust collector is provided with a dust suction pipe, and the dust suction pipe is connected to a primary linear vibration screen and a vertical shaft stripping machine.

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