Stripping device for asphalt pavement reclaimed materials

Abstract

The utility model relates to the technical field of separation and regeneration of asphalt pavement reclaimed materials, in particular to a stripping device for asphalt pavement reclaimed materials, which comprises a grinding cylinder, an impact separation cylinder and a driving mechanism, a feeding hole is formed in the top of the grinding cylinder, a conical convex part is arranged at the bottom in the grinding cylinder, a plurality of screening holes which are arranged at preset intervals are formed in the side edge of the grinding cylinder, and a plurality of first impact parts which are arranged at preset intervals are arranged between every two screening holes; a plurality of second impact parts arranged at preset intervals are arranged on the inner wall of the impact separation barrel, the grinding barrel is arranged in the impact separation barrel and can rotate relative to the impact separation barrel, and the driving mechanism is connected with the grinding barrel and can drive the grinding barrel to rotate. The device is simple in structure, and asphalt and aggregate can be effectively separated.

Description

TECHNICAL FIELD

[0001] The utility model relates to asphalt pavement recycling material separation and regeneration technical field especially relates to a kind of stripping device for asphalt pavement recycling material. BACKGROUND

[0002] Asphalt pavement recycling material (RAP), its stone and asphalt are in the form of "briquetting" in old material, so that old material needs to be stripped after recycling.In the prior art, the grinding type shaping mainly includes the equipment of cone crusher and counter roller crusher.Cone crusher has the advantages of large crushing ratio, high processing efficiency and uniform product size, and is suitable for medium crushing and fine crushing of various minerals and stone materials, but cannot handle high-viscosity materials.Because the old asphalt on the surface of RAP has viscosity, cone crusher is not suitable for completely stripping RAP asphalt.Counter roller crusher is mainly used for crushing materials that are cohesive, brittle and not resistant to grinding, and the roller speed is relatively low, mainly relying on extrusion and shearing action for crushing, and the degree of material grading damage is relatively low, which is more suitable for primary separation of RAP, but not suitable for RAP asphalt stripping. SUMMARY

[0003] The utility model discloses a kind of stripping device for asphalt pavement recycling material, its structure is simple, can effectively separate asphalt and aggregate.

[0004] To solve the above problems, the utility model provides a kind of stripping device for asphalt pavement recycling material, including grinding cylinder, impact separation cylinder and drive mechanism;

[0005] The top of the grinding cylinder is provided with a feed inlet, and the bottom of the grinding cylinder is provided with a conical protrusion part.

[0006] The inner wall of the impact separation cylinder is provided with a plurality of second impact parts arranged at a predetermined interval, and the grinding cylinder is arranged in the impact separation cylinder and can rotate relative to the impact separation cylinder.

[0007] As an improvement of the above technical solution, the conical protrusion part includes a conical protrusion plate, and the conical protrusion plate is uniformly distributed around the rotation axis of the grinding cylinder.

[0008] As an improvement of the above technical solution, the conical protrusion plate is a right triangle structure, and the right angle side of the conical protrusion plate is arranged along the rotation axis of the grinding cylinder.

[0009] As the improvement of the above technical scheme, the first impact part is provided with a plurality of pointed protrusions.

[0010] As the improvement of the above technical scheme, the driving mechanism comprises a driving motor, a driving gear and a driven gear.

[0011] The driving motor is arranged at the bottom of the impact separation cylinder, the output end of the driving motor is provided with the driving gear, the driven gear is provided with a connecting column, the connecting column penetrates through the impact separation cylinder and is connected with the grinding cylinder, and the driving gear and the driven gear are engaged with each other.

[0012] As the improvement of the above technical scheme, the second impact part comprises a first baffle, and the edge of the first baffle is bent at a predetermined angle towards the inner wall of the impact separation cylinder to form the second baffle.

[0013] As the improvement of the above technical scheme, the included angle between the first baffle and the second baffle is 30-60°.

[0014] As the improvement of the above technical scheme, the device further comprises a mounting disc, the driving mechanism is arranged at the bottom of the mounting disc, the grinding cylinder and the impact separation cylinder are coaxially arranged in the mounting disc, and the grinding cylinder can rotate relative to the mounting disc.

[0015] The present application has the following advantages:

[0016] The peeling device comprises a grinding cylinder, an impact separation cylinder and a driving mechanism, the driving mechanism is connected with the grinding cylinder, and the grinding cylinder rotates relative to the impact separation cylinder. During peeling, the grinding cylinder rotates at a high speed, the recycled material enters the grinding cylinder from the feeding port, the conical protrusion part rapidly stirs and strikes the recycled material, the recycled material is struck by the first impact part under the action of centrifugal force and is broken into small pieces of different sizes. When the size of the pieces can pass through the screening hole, the pieces will be secondarily struck by the second impact part under the action of inertia. The grinding cylinder can effectively separate asphalt from aggregates, and the concrete can be further broken after the second impact in the impact separation cylinder, so that subsequent screening and recycling can be carried out. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a front view of the peeling device according to an embodiment of the present application;

[0018] Fig. 2 is a top view of the peeling device according to an embodiment of the present application;

[0019] Fig. 3 is a sectional view of the peeling device according to an embodiment of the present application;

[0020] Fig. 4It is the side view of the first impact part of the embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model will be described further in detail below in combination with the drawings.

[0022] Referring to Figs. 1 to 4 The utility model embodiment provides a kind of stripping device for asphalt pavement recycled material, including grinding cylinder 1, impact separation cylinder 2 and drive mechanism 3.

[0023] The utility model embodiment improves the stripping efficiency by improving the stripping mode of RAP, and facilitates subsequent screening recovery.

[0024] Specifically, the top of the grinding cylinder 1 is provided with a feed inlet 11, the bottom of the grinding cylinder 1 is provided with a conical protrusion 12, the side of the grinding cylinder 1 is provided with a plurality of screening holes 14 arranged at a predetermined interval, and a plurality of first impact parts 13 arranged at a predetermined interval are arranged between the two screening holes 14.

[0025] The inner wall of the impact separation cylinder 2 is provided with a plurality of second impact parts 21 arranged at a predetermined interval, the grinding cylinder 1 is placed in the impact separation cylinder 2, which can rotate relative to the impact separation cylinder 2, the drive mechanism 3 is connected with the grinding cylinder 1, and the drive mechanism 3 can drive the grinding cylinder 1 to rotate.

[0026] The stripping device provided by the utility model includes a grinding cylinder 1, an impact separation cylinder 2 and a drive mechanism 3, the drive mechanism 3 is connected with the grinding cylinder 1, so that the grinding cylinder 1 rotates relative to the impact separation cylinder 2. When stripping, the grinding cylinder 1 rotates at high speed, the recycled material enters the grinding cylinder 1 from the feed inlet 11, the conical protrusion 12 quickly stirs and strikes the recycled material, the recycled material is struck by the first impact part 13 under the action of centrifugal force, and is broken into small pieces of different sizes. When the size of the pieces can pass through the screening hole 14, the pieces will be second-impacted by the second impact part 21 under the action of inertia. The grinding cylinder 1 can effectively separate asphalt from concrete, and the concrete can be further broken after the second impact in the impact separation cylinder 2, so as to be screened and recovered subsequently.

[0027] Preferably, the conical protrusion 12 includes a conical protrusion plate 121, which is uniformly distributed circumferentially around the rotation axis of the grinding cylinder 1. The conical protrusion 12 is composed of a plurality of conical protrusion plates 121, so that it can stir and strike the recycled material multiple times.

[0028] More preferably, the conical protrusion plate 121 is a right triangle structure, and the right angle side of the conical protrusion plate 121 is arranged along the rotation axis of the grinding cylinder.

[0029] Preferably, the first impact part 13 is provided with a plurality of pointed protrusions 131. The plurality of pointed protrusions 131 on the first impact part 13 can increase the pressure when the recycled material is impacted, so that the recycled material can be broken into smaller particles.

[0030] Preferably, the driving mechanism 3 comprises a driving motor 31, a driving gear 32 and a driven gear 33.

[0031] The driving motor 31 is arranged at the bottom of the impact separation cylinder 2, the output end of the driving motor 31 is provided with the driving gear 32, the driven gear 33 is provided with a connecting column, the connecting column passes through the impact separation cylinder 2 and is connected with the grinding cylinder 1, and the driving gear 32 and the driven gear 33 are engaged with each other.

[0032] Preferably, the second impact part 21 comprises a first baffle 211, the edge of the first baffle 211 is bent at a predetermined angle towards the inner wall of the impact separation cylinder 2 to form a second baffle 212. The protruding structure of the second impact part 212 can increase the impact area and improve the breaking efficiency.

[0033] More preferably, the included angle between the first baffle 211 and the second baffle 212 is 30-60°.

[0034] Preferably, the installation disc 4 is further provided, the driving mechanism 3 is arranged at the bottom of the installation disc 4, the grinding cylinder 1 and the impact separation cylinder 2 are coaxially arranged in the installation disc 4, and the grinding cylinder 1 can rotate relative to the installation disc 4.

[0035] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the technical field, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements also be considered as the protection scope of the present application.

Claims

1. A stripping apparatus for asphalt pavement recyclate, characterized in that, The grinding cylinder, the impact separation cylinder and the driving mechanism are included. The top of the grinding cylinder is provided with a feeding port, the bottom of the grinding cylinder is provided with a conical protrusion, the side of the grinding cylinder is provided with a plurality of screening holes arranged at a predetermined interval, and a plurality of first impact portions arranged at a predetermined interval are arranged between the two screening holes. The inner wall of the impact separation cylinder is provided with a plurality of second impact portions arranged at a predetermined interval, the grinding cylinder is arranged in the impact separation cylinder and can rotate relative to the impact separation cylinder, the driving mechanism is connected with the grinding cylinder, and the driving mechanism can drive the grinding cylinder to rotate.

2. The peeling apparatus according to claim 1, wherein The conical protrusion includes a conical protruding plate which is uniformly distributed around the rotation axis of the grinding cylinder.

3. The peeling apparatus according to claim 2, wherein The conical protruding plate is a right triangle structure, and the right angle side of the conical protruding plate is arranged along the rotation axis of the grinding cylinder.

4. The peeling apparatus according to claim 1, wherein A plurality of sharp protrusions are arranged on the first impact portion.

5. The peeling apparatus according to claim 1, wherein The driving mechanism includes a driving motor, a driving gear and a driven gear. The driving motor is arranged at the bottom of the impact separation cylinder, the output end of the driving motor is provided with the driving gear, the driven gear is provided with a connecting column, the connecting column passes through the impact separation cylinder and is connected with the grinding cylinder, and the driving gear and the driven gear are engaged with each other.

6. The peeling apparatus of claim 1, wherein The second impact portion includes a first baffle, and the edge of the first baffle is bent at a predetermined angle towards the inner wall of the impact separation cylinder to form a second baffle.

7. The peeling apparatus according to claim 6, wherein The included angle between the first baffle and the second baffle is 30-60°.

8. A peeling apparatus according to any one of claims 1 to 7, wherein The installation disc is further included, the driving mechanism is arranged at the bottom of the installation disc, the grinding cylinder and the impact separation cylinder are coaxially arranged in the installation disc, and the grinding cylinder can rotate relative to the installation disc.

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