Asphalt mixture thermal cycle regeneration device

Abstract

The present invention relates to an asphalt mixture thermal cycle regeneration device, belonging to the technical field of asphalt reuse, comprising a shell, a top of which is provided with a feed port, two mounting plates are respectively vertically arranged in the shell, two guide rods are respectively horizontally arranged on the sides of the two mounting plates away from each other, a first driving mechanism is arranged on the shell, and is used to drive the two mounting plates to move back and forth in opposite directions, and a plurality of crushing heads are respectively fixed at equal intervals on the sides of the two mounting plates close to each other. The present invention utilizes the first driving mechanism to drive the two mounting plates to move back and forth, so that the crushing heads on the mounting plates continuously squeeze the asphalt on the surface of the stone, so that the asphalt is crushed and falls off the stone surface, and at the same time can drive the fragments and stones to flip in the horizontal direction, and the fragments and stones use their own gravity to flip when falling, so as to maximize the contact time between the asphalt and the crushing heads, and effectively improve the reuse rate of the asphalt.

Description

Technical Field

[0001] The invention belongs to the technical field of asphalt reuse, and in particular relates to an asphalt mixture thermal cycle regeneration device. Background Art

[0002] Although asphalt pavement has excellent durability, it still needs to be dismantled and repaved after reaching the end of its service life. If the dismantled asphalt pavement fragments are directly discarded, it will cause a certain amount of resource waste. In order to improve the utilization efficiency of resources, the asphalt thermal cycle regeneration technology is proposed, which is to heat the waste asphalt to a molten state, and then mix the regeneration agent into the molten old asphalt to achieve the thermal cycle regeneration and reuse of asphalt. However, when paving asphalt pavement, the hot asphalt is mixed with gravel, so that the asphalt pavement fragments contain gravel. The asphalt needs to be separated from the asphalt pavement fragments before the old asphalt can be thermally recycled.

[0003] At present, the existing technology mainly adopts the method of putting asphalt pavement fragments into asphalt mixture thermal recycling equipment, and using the multi-stage squeezing rollers set inside the equipment, the asphalt pavement fragments are squeezed and crushed when passing between the two rollers, so as to separate the gravel and the asphalt. However, in the actual production process, it is found that there is still a certain amount of asphalt on the surface of the gravel treated by the crushing equipment. Research has found that when gravel and asphalt pass between the two rollers, only when the asphalt on the surface of the gravel contacts the roller body can the asphalt be pressed and crushed and fall off the surface of the gravel, resulting in some asphalt being difficult to recycle and reuse. Summary of the invention

[0004] In view of this, the present invention provides an asphalt mixture thermal cycle regeneration device to solve the deficiencies in the prior art. The present invention can continuously squeeze the asphalt on the surface of the gravel, so that the asphalt is broken and falls off the surface of the gravel, effectively improving the reuse rate of the asphalt.

[0005] The technical solution of the present invention is: an asphalt mixture thermal circulation regeneration device, comprising a shell, a top of which is provided with a feed inlet, two mounting plates are respectively vertically arranged in the shell, the two mounting plates are parallel to each other, a crushing zone is between the two mounting plates, the feed inlet is located directly above the crushing zone, asphalt fragments are fed into the crushing zone through the feed inlet, two guide rods are respectively horizontally arranged on the side away from each other of the two mounting plates, the guide rods and the mounting plates are parallel to each other, both ends of the guide rods are connected to the shell, the mounting plates are slidably connected to the guide rods along the length direction of the guide rods, a first driving mechanism is arranged on the shell, the output ends of the first driving mechanism are respectively connected to the two mounting plates, for driving the two mounting plates to move back and forth in opposite directions, a plurality of crushing heads are respectively and equidistantly fixed on the side close to each other of the two mounting plates, and the crushing heads on the two mounting plates continuously extrude the asphalt fragments to crush them.

[0006] Preferably, a support plate is horizontally provided directly below the mounting plate, the support plate is connected to the shell, a connecting plate is vertically provided on the inner wall of the shell, the connecting plate is located on the outside of one of the mounting plates and is parallel to it, the connecting plate is slidably connected to the shell along the length direction of the guide rod, a plurality of rollers are horizontally provided directly above the support plate and are arranged at equal intervals along the length direction of the guide rod, the rollers are parallel to each other, and the rollers are rotatably connected around their circumferential connecting plates, a second driving mechanism is provided on the shell, the output end of the second driving mechanism is connected to the connecting plate, and is used to drive the connecting plate to move back and forth.

[0007] Preferably, the second driving mechanism is replaced by a plurality of first arms, and the plurality of first arms are arranged between the connecting plate and the mounting plate at equal intervals along the length direction of the guide rod, one end of the first arm is fixedly connected to the mounting plate, and the other end is fixedly connected to the connecting plate.

[0008] Preferably, the support plate is vertically provided with a plurality of sieve holes at equal intervals, the support plate is slidably connected to the shell along the length direction of the guide rod, and a plurality of second arms are connected between the support plate and another mounting plate at equal intervals along the length direction of the guide rod.

[0009] Preferably, a first discharge port is provided on one side of the shell, one end of the support plate extends through the first discharge port to the outside of the shell, a second discharge port is provided on the shell below the support plate, a chute plate is obliquely upwardly penetrated on the second discharge port, and the chute plate is fixedly connected to the inner wall of the shell.

[0010] Preferably, the support plate is an arc-shaped plate, the center line of which is located on a side thereof close to the mounting plate and is parallel to the guide rod.

[0011] Preferably, a material guide hopper is vertically arranged directly above the two mounting plates, the upper end of the material guide hopper is fixedly connected to the feed inlet, and the cross-sectional area of ​​the material guide hopper gradually decreases from top to bottom.

[0012] Preferably, one side of the two mounting plates close to the feed inlet is arc-shaped and extends toward a side where the two mounting plates are away from each other.

[0013] Preferably, the distance between the two mounting plates decreases gradually from top to bottom.

[0014] Compared with the prior art, the present invention provides an asphalt mixture thermal circulation regeneration device, which is used in conjunction with a mounting plate, a guide rod, a first driving mechanism, and a crushing head through a shell and a feed port on the top thereof. After the asphalt pavement fragments are thrown into the crushing area between the two mounting plates through the feed port, the two mounting plates are driven back and forth by the first driving mechanism, so that the crushing heads on the mounting plates continuously squeeze the asphalt on the surface of the gravel, thereby causing the asphalt to be crushed and fall off the surface of the gravel. At the same time, the two mounting plates can drive the fragments and gravel to flip in the horizontal direction when moving. The fragments and gravel use their own gravity to flip when falling, thereby increasing the contact time between the asphalt and the crushing head as much as possible, and effectively improving the reuse rate of the asphalt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view of the thermal cycle regeneration device of the present invention;

[0016] Figure 2 is a top view of the thermal cycle regeneration device of the present invention;

[0017] Figure 3 The present invention Figure 1 AA section view in;

[0018] Figure 4 The present invention Figure 1 BB section view in;

[0019] Figure 5 The present invention Figure 2 CC section view in. DETAILED DESCRIPTION

[0020] The present invention provides an asphalt mixture thermal cycle regeneration device, which is combined with Figures 1 to 5 The present invention is described with reference to the structural schematic diagram of FIG.

[0021] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Reference Figure 1 It is a front view of the regeneration device of this embodiment, an asphalt mixture thermal cycle regeneration device, including a shell 1, a top of which is provided with a feed port 11, two mounting plates 2 are respectively vertically arranged in the shell 1, the two mounting plates 2 are parallel to each other, a crushing zone is between the two mounting plates 2, the feed port 11 is located directly above the crushing zone, and asphalt fragments are fed into the crushing zone through the feed port 11, two guide rods 3 are respectively horizontally arranged on the side of the two mounting plates 2 away from each other, the guide rods 3 and the mounting plates 2 are parallel to each other, both ends of the guide rods 3 are connected to the shell 1, and the mounting plates 2 are slidably connected to the guide rods 3 along the length direction of the guide rods 3, a first driving mechanism is arranged on the shell 1, and the output ends of the first driving mechanism are respectively connected to the two mounting plates 2, for driving the two mounting plates 2 to move back and forth in opposite directions, a plurality of crushing heads 4 are respectively fixedly arranged at equal intervals on the side of the two mounting plates 2 close to each other, and the crushing heads 4 on the two mounting plates 2 continuously squeeze the asphalt fragments to crush them.

[0023] The thermal cycle regeneration device disclosed in this embodiment can crush the pavement fragments removed from the old asphalt pavement, separate the asphalt from the gravel as much as possible, and improve the reuse rate of the asphalt.

[0024] An asphalt mixture thermal cycle regeneration device in the present embodiment can re-crush the fragments after the old asphalt pavement is removed (when the asphalt pavement is removed, a hydraulic breaker at the front end of the excavator's mechanical arm is used). The feed port 11 at the top of the housing 1 of the device can be connected to the conveyor belt, and the conveyor belt is used to continuously feed the asphalt pavement fragments into the feed port 11. The asphalt pavement fragments pass through the feed port 11 and fall on the upper side of the crushing area between the two mounting plates 2. At the same time, the first driving mechanism drives the two mounting plates 2 to move back and forth along the guide rod 3, so that the crushing head on the mounting plate 2 continuously squeezes the asphalt on the surface of the stone during the falling of the fragments, so that the asphalt is crushed and falls off the stone surface. When the mounting plate and the crushing head on the mounting plate move back and forth, the fragments and stones can be driven to flip in the horizontal direction. The fragments and stones use their own gravity to flip when falling, so that the fragments and stones are continuously flipped as a whole, further increasing the contact time between the asphalt and the crushing head, and effectively improving the reuse rate of the asphalt.

[0025] In this embodiment, a plurality of connecting blocks or reinforcing ribs are arranged on the outer sides of the two mounting plates 2, and the guide rods 3 pass through the connecting blocks or reinforcing ribs respectively. At the same time, a plurality of guide rods 3 can be arranged on the outer side of each mounting plate 2, so as to further improve the stability of squeezing the asphalt on the surface of the stone by the crushing head when the mounting plate moves.

[0026] The first driving mechanism in this embodiment can adopt a hydraulic cylinder or a motor. The hydraulic cylinder is horizontally fixed on the inner walls of the shell 1 on both sides close to the guide rod and parallel to the guide rod. The output end of the hydraulic cylinder is fixedly connected to the mounting plate, thereby driving the mounting plate 2 to move back and forth.

[0027] A motor may also be used, the motor is fixed on the housing, a lead screw passes through the mounting plate and is parallel to the guide rod, and the motor is used to drive the lead screw to rotate, so that the mounting plate 2 moves back and forth.

[0028] The device also includes an external controller, which is connected to the hydraulic cylinder or the motor to control the hydraulic cylinder or the motor.

[0029] Reference Figure 3 It is the AA cross-sectional view of the regeneration device of this embodiment. As a further optimization scheme, in this embodiment, a support plate 5 is horizontally provided directly below the mounting plate 2, and the support plate 5 is connected to the shell body 1. A connecting plate 6 is vertically provided on the inner wall of the shell body 1. The connecting plate 6 is located on the outside of one of the mounting plates 2 and is parallel to it. The connecting plate 6 is slidingly connected to the shell body 1 along the length direction of the guide rod 3. A plurality of rollers 7 are horizontally provided directly above the support plate 5 and are arranged at equal intervals along the length direction of the guide rod 3. The rollers 7 are parallel to each other and are rotatably connected around their circumferential connecting plate 6. A second driving mechanism is provided on the shell body 1, and the output end of the second driving mechanism is connected to the connecting plate 6 for driving the connecting plate 6 to move back and forth.

[0030] In this embodiment, the support plate 5 is used to receive the asphalt, gravel, etc. that fall from the crushing area, and the second driving mechanism is used to drive the connecting plate 6 to move back and forth, so that the roller body 7 can squeeze the asphalt and gravel that fall on the support plate 5, and further make the asphalt on the surface of the gravel be crushed and fall off under pressure. At the same time, the roller body 7 is rotatably connected to the connecting plate 6, so that when the roller body 7 moves to squeeze the asphalt and gravel, the roller body 7 itself can also rotate around its circumference, so that the squeezed asphalt is turned over on the support plate 5, and the asphalt on the surface of the gravel is as much as possible. Fall, further improve the reuse rate of asphalt.

[0031] Reference Figure 4 It is the BB cross-sectional view of the regeneration device of this embodiment. As a further optimization scheme, the second driving mechanism in this embodiment is replaced by a plurality of first arms 8, and the plurality of first arms 8 are arranged between the connecting plate 6 and the mounting plate 2 at equal intervals along the length direction of the guide rod 3. One end of the first arm 8 is fixedly connected to the mounting plate 2, and the other end is fixedly connected to the connecting plate 6.

[0032] In this embodiment, a plurality of first arms 8 are arranged between the connecting plate 6 and the mounting plate 2 close thereto, so that the mounting plate 2 can synchronously drive the connecting plate 6 to move back and forth when it moves back and forth, so that the roller body 7 and the crushing head 4 in the crushing area can perform crushing processing at the same frequency. In addition, when the mounting plate 2 moves back and forth, the roller body 7 also starts to move, so as to avoid the situation in which part of the asphalt does not fall off from the surface of the gravel due to the failure to start the roller body 7 to move back and forth in time when the asphalt pavement fragments are crushed.

[0033] At the same time, after a batch of asphalt pavement fragments have all entered the shell, when the roller body 7 squeezes the last part of the fragments and stones, when no new asphalt pavement fragments are added, the mounting plate 2 still drives the crushing head 4 to move back and forth, so that the fragments and stones stuck between the two mounting plates 2 fall off.

[0034] According to the above embodiments, the crushing head and the roller are used to separate the gravel and the asphalt particles. After the separation, the asphalt needs to be screened out to facilitate the subsequent processing of the asphalt particles.

[0035] To this end, this embodiment proposes a solution. In this embodiment, a plurality of sieve holes 51 are vertically opened at equal intervals on the support plate 5. The support plate 5 is slidably connected to the shell 1 along the length direction of the guide rod 3. A plurality of second support arms 52 are connected between the support plate 5 and another mounting plate 2 at equal intervals along the length direction of the guide rod 3.

[0036] In this embodiment, the support plate 5 is constituted of a sieve plate by providing sieve holes 51 on the support plate 5. After the asphalt falls off from the surface of the gravel, the roller body is moved back and forth to squeeze the larger asphalt particles to break them into small particles. At the same time, the second arm 52 is used to move the mounting plate and synchronously drive the support plate 5 to move back and forth, so that the asphalt leaks out of the sieve holes 51, thereby realizing the extraction of the asphalt.

[0037] As a further optimization scheme, in this embodiment, a first discharge port 12 is opened on one side of the shell 1, one end of the support plate 5 passes through the first discharge port 12 and extends to the outside of the shell 1, and a second discharge port 13 is opened on the shell 1 below the support plate 5, and a chute plate 14 is obliquely upwardly penetrated on the second discharge port 13, and the chute plate 14 is fixedly connected to the inner wall of the shell 1.

[0038] Reference Figure 5 It is a CC cross-sectional view of the regeneration device of this embodiment. In this embodiment, the first discharge port 12 on the shell 1 is used so that when the support plate 5 moves back and forth, the stones on the support plate 5 continuously move toward the first discharge port 12, so that the stones fall from one end extending from the support plate 5 to the outside of the body 1. A conveyor belt can be set under the support plate 5 to collect the stones for easy reuse.

[0039] In this embodiment, a baffle 121 is provided at one end of the support plate 5 away from the first discharge port 12 , and the stones and asphalt particles continuously falling from the crushing area are used to push the stones to move toward the first discharge port 12 .

[0040] As a further optimization solution, in this embodiment, the support plate 5 is an arc-shaped plate, the center line of which is located on the side close to the mounting plate 2 and is parallel to the guide rod 3 .

[0041] In this embodiment, the support plate 5 is arranged in an arc shape so that the stones and asphalt particles falling from the crushing area are gathered in the middle of the support plate 5. At the same time, the outer diameter of the roller body 7 gradually increases from both ends to the middle, thereby improving the squeezing effect of the roller body 7 on the stones and asphalt.

[0042] According to the thermal cycle regeneration device of the aforementioned embodiment, the two mounting plates move back and forth during operation, causing the range of the crushing zone between the two mounting plates 2 to change. It is necessary to prevent the asphalt pavement fragments fed into the feed port 11 from not falling into the crushing zone.

[0043] Reference Figure 2 This is a top view of the regeneration device of this embodiment. Based on this, this embodiment improves the feed port. A guide hopper 15 is vertically arranged directly above the two mounting plates 2. The upper end of the guide hopper 15 is fixedly connected to the feed port 11, and the cross-sectional area of ​​the guide hopper 15 gradually decreases from top to bottom.

[0044] In this embodiment, the guide hopper 15 and the smaller opening at the lower end thereof enable the asphalt pavement fragments fed into the feed port 11 to be accurately fed into the crushing area between the two mounting plates 2 through the guide hopper 15 .

[0045] In addition, flexible limit strips 151 can be vertically arranged at both ends of the mounting plate in the horizontal direction, and the flexible limit strips 151 abut against another mounting plate 2, thereby preventing the fragments from moving out of the crushing area between the two mounting plates when the mounting plate 2 drives the fragments to flip horizontally.

[0046] As a further optimization solution, in this embodiment, the side of the two mounting plates 2 close to the feed port 11 is arc-shaped and extends toward the side where the two mounting plates 2 are away from each other.

[0047] In this embodiment, the upper ends of the two mounting plates 2 are arc-shaped, so that the asphalt pavement fragments dropped from the guide hopper 15 can enter the crushing area between the two mounting plates 2.

[0048] As a further optimization solution, in this embodiment, the distance between the two mounting plates 2 gradually decreases from top to bottom.

[0049] In this embodiment, the distance between the two mounting plates 2 is gradually reduced from top to bottom, so that the distance between the crushing heads on the two mounting plates 2 becomes closer and closer. The crushing heads on the two mounting plates 2 are staggered, which further improves the extrusion and crushing effect of fragments, stones and asphalt.

[0050] The above disclosure is only a preferred specific embodiment of the present invention, but the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An asphalt mixture thermal cycle regeneration device, characterized in that: include: The housing (1) has a material inlet (11) at the top; Two mounting plates (2) are respectively vertically arranged in the housing (1), the two mounting plates (2) are parallel to each other, a crushing zone is located between the two mounting plates (2), the feed inlet (11) is located directly above the crushing zone, and asphalt fragments are fed into the crushing zone through the feed inlet (11); Two guide rods (3) are respectively arranged horizontally on the sides of the two mounting plates (2) that are away from each other, the guide rods (3) and the mounting plates (2) are parallel to each other, both ends of the guide rods (3) are connected to the housing (1), and the mounting plates (2) are slidably connected to the guide rods (3) along the length direction thereof; A first driving mechanism is arranged on the housing (1), wherein the output ends of the first driving mechanism are respectively connected to the two mounting plates (2) and are used to drive the two mounting plates (2) to move back and forth towards each other or away from each other and in opposite directions; A plurality of crushing heads (4) are fixedly mounted at equal intervals on the sides of the two mounting plates (2) close to each other. The crushing heads (4) on the two mounting plates (2) continuously squeeze the asphalt fragments to crush them.

2. The asphalt mixture thermal cycle regeneration device according to claim 1, characterized in that: A support plate (5) is horizontally arranged directly below the mounting plate (2), the support plate (5) being connected to the shell (1), a connecting plate (6) is vertically arranged on the inner wall of the shell (1), the connecting plate (6) is located on the outer side of one of the mounting plates (2) and is parallel to the mounting plate (2), the connecting plate (6) is slidably connected to the shell (1) along the length direction of the guide rod (3), a plurality of rollers (7) are horizontally arranged directly above the support plate (5), and are arranged at equal intervals along the length direction of the guide rod (3), the rollers (7) are parallel to each other, and the rollers (7) are rotatably connected around their circumferential connecting plate (6), a second driving mechanism is arranged on the shell (1), the output end of the second driving mechanism is connected to the connecting plate (6), and is used to drive the connecting plate (6) to move back and forth.

3. The asphalt mixture thermal cycle regeneration device according to claim 2, characterized in that: The second driving mechanism is replaced by a plurality of first support arms (8), and the plurality of first support arms (8) are arranged between the connecting plate (6) and the mounting plate (2) at equal intervals along the length direction of the guide rod (3), and one end of the first support arm (8) is fixedly connected to the mounting plate (2), and the other end is fixedly connected to the connecting plate (6).

4. The asphalt mixture thermal cycle regeneration device according to claim 2, characterized in that: The support plate (5) is provided with a plurality of sieve holes (51) vertically and at equal intervals. The support plate (5) is slidably connected to the housing (1) along the length direction of the guide rod (3). A plurality of second support arms (52) are connected between the support plate (5) and another mounting plate (2) at equal intervals along the length direction of the guide rod (3).

5. The asphalt mixture thermal cycle regeneration device according to claim 4, characterized in that: A first discharge port (12) is provided on one side of the shell (1), one end of the support plate (5) passes through the first discharge port (12) and extends to the outside of the shell (1), and a second discharge port (13) is provided on the shell (1) below the support plate (5), and a chute plate (14) is obliquely upwardly penetrated on the second discharge port (13), and the chute plate (14) is fixedly connected to the inner wall of the shell (1).

6. The asphalt mixture thermal cycle regeneration device according to claim 2, characterized in that: The support plate (5) is an arc-shaped plate, the center line of which is located on a side thereof close to the mounting plate (2) and is parallel to the guide rod (3).

7. The asphalt mixture thermal cycle regeneration device according to claim 1, characterized in that: A material guide hopper (15) is vertically arranged directly above the two mounting plates (2), the upper end of the material guide hopper (15) is fixedly connected to the feed inlet (11), and the cross-sectional area of ​​the material guide hopper (15) gradually decreases from top to bottom.

8. The asphalt mixture thermal cycle regeneration device according to claim 1, characterized in that: The side of the two mounting plates (2) close to the feed opening (11) is arc-shaped and extends towards the side where the two mounting plates (2) are away from each other.

9. The asphalt mixture thermal cycle regeneration device according to claim 1, characterized in that: The distance between the two mounting plates (2) gradually decreases from top to bottom.

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