Asphalt concrete recycled aggregate screening device

Abstract

The utility model discloses an asphalt concrete recycled aggregate screening device, which relates to the technical field of asphalt concrete recycling equipment, aims to provide an asphalt concrete recycled aggregate screening device capable of discharging dust which is difficult to use, and is technically characterized in that a base is provided with a shock absorber, the shock absorber is provided with a hopper, and the hopper is provided with a hopper. A vibration damper is arranged on the base, a hopper is arranged on the vibration damper, a sieve plate is arranged below the hopper, the sieve plate is slidably connected to the side face of the vibration damper, a vibrator is arranged below the sieve plate, and a collecting box is arranged at the position, corresponding to the hopper, of the base. The air suction fan sucks the collected inward air outwards, the materials with large particle sizes fall down depending on the weight of the materials, and the dust with small particle sizes is discharged by the air suction fan, so that the purpose of automatically separating the dust during screening is achieved, and the dust is prevented from being mixed with the materials.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt concrete recycling equipment, in particular to an asphalt concrete recycled aggregate screening device. Background Art

[0002] Asphalt concrete, commonly known as asphalt concrete, is a mixture made by artificially selecting mineral materials with a certain graded composition, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, under strictly controlled conditions. It is often used in road paving. A large amount of asphalt concrete waste will be generated during road maintenance or renovation work. These wastes can be recycled after crushing. In order to facilitate recycling, the aggregates are usually screened and discharged. However, some finer dust cannot be recycled during screening and will follow the holes on the sieve plate to disperse into the aggregate, affecting the recovery of the aggregate. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies of the prior art, the utility model provides an asphalt concrete recycled aggregate screening device which can discharge dust that is difficult to utilize.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an asphalt concrete recycled aggregate screening device, comprising a base, a shock absorber is provided on the base, a hopper is provided on the shock absorber, a sieve plate is provided under the hopper, the sieve plate is slidably connected to the side of the shock absorber, a vibrator is provided under the sieve plate, a collecting box is provided at a position corresponding to the hopper on the base, a partition is provided in the collecting box, the partition divides the collecting box into a plurality of storage cavities, a discharge port is provided at a position corresponding to the storage cavity on the front side of the collecting box, a through hole is opened on the partition, and an exhaust fan is provided on the outer side of the collecting box, and the exhaust fan is used to extract dust in the collecting box.

[0007] Preferably, a soft partition cloth is provided on the sieve plate, and the soft partition cloth is used to seal the gap between the sieve plate and the hopper.

[0008] Preferably, a tail material discharge component is provided at the tail end of the hopper, and the tail material discharge component is used to discharge large-volume materials that cannot be screened.

[0009] Preferably, the tailings discharge component comprises a slide plate, a rotating shaft and a movable baffle, the slide plate is arranged at the end of the screen plate, and the movable baffle is rotatably connected to the slide plate via the rotating shaft.

[0010] Preferably, a coil spring is provided on the side of the rotating shaft, and the other end of the coil spring is connected to the slide plate.

[0011] Preferably, a fixed baffle is provided in the hopper, and a gap is left between the fixed baffle and the sieve plate.

[0012] Preferably, the sieve plate is provided with multiple levels of sieve holes, the sieve holes are arranged from small to large, and the positions of the sieve holes are aligned with the storage cavity in the collection box.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an asphalt concrete recycled aggregate screening device, which has the following beneficial effects:

[0015] 1. By setting up an exhaust fan, during the screening work, the material falls into the collection box through the sieve plate, and the partition separates and stores the materials of different particle sizes. During the falling process of the material, the dust will also fall to the collection box along the holes on the sieve plate. The exhaust fan will collect the air inside and suck it out. The material with large particle size falls by its own weight, and the dust with small particle size is discharged by the exhaust fan, thus achieving the purpose of automatic separation of dust during screening and avoiding the mixing of dust and material.

[0016] 2. By setting a movable baffle and a fixed baffle, the fixed baffle can block the material in the hopper so that the material can only slide down quantitatively through the gap between the fixed baffle and the screen plate, avoiding the problem of rapid sliding of the material and incomplete screening. The movable baffle can limit the material at the end of the screen plate. Large-volume materials that cannot be screened can use their own weight to squeeze the movable baffle open and be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the collection box of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the tail material discharge component of the utility model;

[0020] Figure 4 It is a schematic diagram of the elevation of the utility model.

[0021] In the figure: 1. base; 2. shock absorber; 3. hopper; 4. fixed baffle; 5. sieve plate; 6. tail material discharge component; 601. slide plate; 602. movable baffle; 603. rotating shaft; 604. coil spring; 7. soft partition cloth; 8. collection box; 9. exhaust fan; 10. partition; 11. through hole; 12. discharge port. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 A device for screening recycled aggregate of asphalt concrete comprises a base 1, a shock absorber 2 is arranged on the base 1, a hopper 3 is arranged on the shock absorber 2, a sieve plate 5 is arranged under the hopper 3, the sieve plate 5 is slidably connected to the side of the shock absorber 2, a vibrator is arranged under the sieve plate 5, a collecting box 8 is arranged at a position corresponding to the hopper 3 on the base 1, a partition 10 is arranged in the collecting box 8, the partition 10 divides the collecting box 8 into a plurality of storage chambers, a discharge port 12 is arranged at a position corresponding to the storage chamber on the front side of the collecting box 8, a through hole 11 is opened on the partition 10, an exhaust fan 9 is arranged on the outside of the collecting box 8, and the exhaust fan 9 is used to extract dust in the collecting box 8;

[0024] In the utility model, an exhaust fan 9 and a through hole 11 are provided. The exhaust fan 9 exhausts the dust with a smaller particle size by exhausting the air in the collection box 8, so as to separate the dust from the aggregate. The through hole 11 is used to connect the storage chambers, so that the airflow inside the collection box 8 can circulate comprehensively.

[0025] Moreover, compared with blowing out the dust, the method of extracting the air can better concentrate the dust and prevent the dust from being dispersed in the air and polluting the environment.

[0026] A soft partition cloth 7 is provided on the sieve plate 5, and the soft partition cloth 7 is used to seal the gap between the sieve plate 5 and the hopper 3;

[0027] By setting the soft partition cloth 7, the gap between the screen plate 5 and the hopper 3 can be sealed by the soft partition cloth 7 to prevent the material from leaking through the gap. At the same time, the soft partition cloth 7 can compensate for the vibration of the screen plate 5, that is, when the screen plate 5 vibrates, an effective seal can still be maintained.

[0028] A tailing material discharging component 6 is provided at the tail end of the hopper 3, and the tailing material discharging component 6 is used to discharge large-volume materials that cannot be screened. The tailing material discharging component 6 includes a slide plate 601, a rotating shaft 603 and a movable baffle 602. The slide plate 601 is provided at the end of the sieve plate 5, and the movable baffle 602 is rotatably connected to the slide plate 601 through the rotating shaft 603;

[0029] By setting the movable baffle 602 and the rotating shaft 603, the rotating shaft 603 supports and limits the movable baffle 602, so that the movable baffle 602 can be rotated on the side of the slide plate 601 through the rotating shaft 603, so that some large-volume materials that cannot be screened can rely on their own weight to squeeze the movable baffle 602, so that the movable baffle 602 is squeezed open and discharged, while some materials that can be screened cannot squeeze the movable baffle 602 open.

[0030] A coil spring 604 is provided on the side of the rotating shaft 603, and the other end of the coil spring 604 is connected to the slide plate 601;

[0031] By providing the coil spring 604, the coil spring 604 can improve the stability of the rotating shaft 603 and the movable baffle 602, prevent the movable baffle 602 from randomly rotating and opening due to the vibration of the screen plate 5, and prevent some small-volume materials from flowing out.

[0032] A fixed baffle plate 4 is provided in the hopper 3, and a gap is left between the fixed baffle plate 4 and the sieve plate 5;

[0033] By providing a fixed baffle 4, the material in the hopper 3 can be blocked by the fixed baffle 4, so that the material can slide at a uniform speed in the hopper 3, thereby preventing the material from sliding too fast and causing incomplete screening.

[0034] The sieve plate 5 is provided with multiple levels of sieve holes, which are arranged from small to large, and the positions of the sieve holes are aligned with the storage cavity in the collection box 8;

[0035] By setting up multi-level sieve holes, the aggregates can be finely screened using the multi-level sieve holes, so that aggregates of different particle sizes can be separated and facilitated for subsequent recycling.

[0036] Working principle:

[0037] The material is poured into the hopper 3, and the fixed baffle 4 restricts the material so that the material flows at a uniform speed through the gap at the bottom. At the same time, the screen plate 5 vibrates to screen the material, and the screened material falls into the collection box 8. Then the exhaust fan 9 discharges the dust in the collection box 8. Some large-volume materials that cannot be discharged flow to the tail end of the screen plate 5 and use their own weight to squeeze the movable baffle 602 open.

[0038] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. An asphalt concrete recycled aggregate screening device, comprising a base (1), characterized in that: The base (1) is provided with a shock absorber (2), the shock absorber (2) is provided with a hopper (3), the hopper (3) is provided with a sieve plate (5), the sieve plate (5) is slidably connected to the side of the shock absorber (2), a vibrator is provided under the sieve plate (5), a collecting box (8) is provided at a position corresponding to the hopper (3) on the base (1), a partition (10) is provided inside the collecting box (8), the partition (10) divides the collecting box (8) into a plurality of storage chambers, a discharge port (12) is provided on the front side of the collecting box (8) at a position corresponding to the storage chamber, a through hole (11) is opened on the partition (10), an exhaust fan (9) is provided on the outside of the collecting box (8), and the exhaust fan (9) is used to extract dust in the collecting box (8).

2. The asphalt concrete recycled aggregate screening device according to claim 1, characterized in that: A soft partition cloth (7) is provided on the sieve plate (5), and the soft partition cloth (7) is used to seal the gap between the sieve plate (5) and the hopper (3).

3. The asphalt concrete recycled aggregate screening device according to claim 1, characterized in that: A tail material discharge component (6) is provided at the tail end of the hopper (3), and the tail material discharge component (6) is used to discharge large-volume materials that cannot be screened.

4. The asphalt concrete recycled aggregate screening device according to claim 3, characterized in that: The tail material discharge component (6) comprises a slide plate (601), a rotating shaft (603) and a movable baffle (602); the slide plate (601) is arranged at the end of the screen plate (5); and the movable baffle (602) is rotatably connected to the slide plate (601) via the rotating shaft (603).

5. The asphalt concrete recycled aggregate screening device according to claim 4, characterized in that: A coil spring (604) is provided on the side of the rotating shaft (603), and the other end of the coil spring (604) is connected to the slide plate (601).

6. The asphalt concrete recycled aggregate screening device according to claim 1, characterized in that: A fixed baffle (4) is provided in the hopper (3), and a gap is left between the fixed baffle (4) and the sieve plate (5).

7. The asphalt concrete recycled aggregate screening device according to claim 1, characterized in that: The sieve plate (5) is provided with multiple levels of sieve holes, the sieve holes are arranged from small to large, and the positions of the sieve holes are aligned with the storage cavity in the collection box (8).

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