Asphalt milling material adhering to asphalt separation device

Abstract

The present invention relates to the technical field of waste asphalt separation, and more particularly to a device for separating asphalt adhered to asphalt milling material. The device comprises a frame, a feeding mechanism, a material conveying mechanism, and a material separation mechanism mounted on the frame. The material conveying mechanism and the material separation mechanism are both rotatably mounted, and the distance between them is adjustable. This device enables continuous feeding and effective separation of waste asphalt mixtures, fully separating asphalt from aggregates such as gravel and sand, and improving separation efficiency. Furthermore, the adjustable distance between the material conveying mechanism and the material separation mechanism effectively resolves the problem of material accumulation and blockage.

Description

Technical Field

[0001] The invention relates to the technical field of waste asphalt separation, in particular to a device for separating asphalt from asphalt milling materials. Background Art

[0002] With the accelerated development of industrialization and increasingly convenient transportation, the number of highways in my country continues to increase, with asphalt pavement being the primary type. However, factors such as repeated vehicle loading, overloading, road construction, and reaching the end of their service life have rendered asphalt pavements unusable. This results in a large amount of asphalt milling material, which not only wastes resources and occupies a significant amount of land, but also causes serious environmental pollution.

[0003] Oilstone separation is a method for separating and recovering the asphalt components in asphalt milling materials to separate asphalt and aggregate, thereby achieving the reuse of asphalt and aggregate. Currently, oilstone separation technologies are divided into three categories: physical separation, chemical separation, and biological separation. Chemical separation reagents are highly volatile and toxic, endangering the environment. In addition, due to the high price of chemical reagents, the extract cannot be effectively recovered, which greatly increases the cost of the chemical separation process. Biological separation is still in the laboratory stage and lacks certain applicability. Only physical separation technology is relatively mature, but existing separation equipment is prone to material accumulation and clogging during the continuous feeding process, making it impossible to continuously separate, and the separation is incomplete and inefficient.

[0004] Therefore, there is an urgent need to provide a separation device that can achieve continuous feeding, continuous material separation, and complete and efficient separation. Summary of the Invention

[0005] In order to solve the above technical problems existing in the prior art, the present invention provides a device for separating asphalt from asphalt milling materials.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] The present invention provides a device for separating asphalt milling material from asphalt, comprising a frame and a feeding mechanism, a material conveying mechanism and a material separation mechanism arranged on the frame. The material conveying mechanism and the material separation mechanism are both rotatably arranged, and the distance between the material conveying mechanism and the material separation mechanism is adjustable.

[0008] The above-mentioned technical solution provided by the present invention can realize the continuous feeding of waste asphalt mixtures such as asphalt milling materials and the continuous and effective separation of old asphalt attached to the surface of aggregates, with high separation efficiency; and by adjusting the distance between the material conveying mechanism and the material separation mechanism, the separation effect can be effectively controlled and material accumulation and blockage can be avoided.

[0009] On the basis of the above technical solution, the present invention can also make the following improvements:

[0010] Furthermore, it also includes a driving mechanism for driving the material separation mechanism to move away from or close to the material conveying mechanism.

[0011] Furthermore, the driving mechanism includes an adjusting screw, a connecting block and an elastic member. The connecting block is arranged on the frame, the adjusting screw is threadedly connected to the connecting block, one end of the elastic member is connected to the adjusting screw, and the other end is connected to the material separation mechanism.

[0012] The beneficial effect of adopting the above further technical solution is that the elastic member is lengthened or retracted by rotating the adjusting screw in and out of the connecting block, and the elastic member then drives the movement of the material separation mechanism.

[0013] Furthermore, the material separation mechanism is hinged to the frame.

[0014] The beneficial effect of adopting the above further technical solution is that it facilitates the movement of the material separation mechanism.

[0015] Furthermore, the axis of the material conveying mechanism is arranged parallel to the axis of the material separating mechanism.

[0016] The beneficial effect of adopting the above-mentioned further technical solution is that it is conducive to directly conveying the materials conveyed by the material conveying mechanism to the material separation mechanism for separation, and it is easy to realize multiple separation operations of the materials, thereby improving the separation efficiency and separation effect.

[0017] Furthermore, the material separation mechanism includes a first roller, and the surface of the first roller is provided with through holes and material separation pieces.

[0018] Furthermore, the material separation piece is an arc-shaped sheet structure and is extended above the through hole.

[0019] The beneficial effect of adopting the above-mentioned further technical solution is that it is easy to separate asphalt from aggregates such as crushed stone and sand and gravel, which is conducive to the full separation of materials.

[0020] Furthermore, the material conveying mechanism includes a second roller, and the surface of the second roller is provided with spiral blades and vertical blades.

[0021] The beneficial effects of adopting the above-mentioned further technical solution are: the spiral blades play the role of guiding and conveying the mixed material, improving the material conveying efficiency and preventing material blockage; the vertical blades play the role of turning the material, and through the turning of the material, the contact surface between the material and the material separation mechanism is continuously changed, thereby improving the material separation effect and processing efficiency.

[0022] Furthermore, it also includes a first motor and a first drive shaft connected, and a second motor and a second drive shaft connected. The first drive shaft is connected to the material conveying mechanism to drive the material conveying mechanism to rotate, and the second drive shaft is connected to the material separation mechanism to drive the material separation mechanism to rotate.

[0023] Furthermore, it also includes a discharging mechanism, which is arranged below the material separation mechanism.

[0024] Compared with the prior art, the present invention has the following technical effects:

[0025] The asphalt milling material adhesion asphalt separation device provided by the present invention can realize continuous feeding and continuous and effective separation of asphalt milling material, fully realize the separation of asphalt and aggregates such as crushed stone and sand and gravel, and improve the separation efficiency; and the distance between the material conveying mechanism and the material separation mechanism can be adjusted, which can effectively solve the problem of material accumulation and blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram showing the structure of a device for separating asphalt milling material from asphalt according to an embodiment of the present invention;

[0027] Figure 2 A schematic diagram showing a partial structure of a device for separating asphalt milling material from asphalt according to an embodiment of the present invention;

[0028] Figure 3 Showing a schematic structural diagram of the first roller;

[0029] Figure 4 Show Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 A schematic structural diagram of a connecting member is shown;

[0031] Reference numerals:

[0032] 1. Frame; 11. Upper cover; 12. First side panel; 2. Feeding mechanism; 21. Sealing cover; 3. Material conveying mechanism; 31. Second roller; 32. Spiral blade; 33. Vertical blade; 4. Material separation mechanism; 41. First roller; 42. Through hole; 43. Material separation element; 5. Driving mechanism; 51. Adjusting screw; 52. Connecting block; 53. Elastic element; 6. First motor; 61. First drive shaft; 7. Second motor; 71. Second drive shaft; 8. Discharging mechanism; 9. Connecting piece; 91. Connecting sleeve 1; 92. Connecting sleeve 2; 93. Connecting arm; 10. Pin shaft. DETAILED DESCRIPTION

[0033] The following is an explanation of the embodiments of the present invention by specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiment is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0034] See also Figure 1-Figure 5 , a device for separating asphalt milling material from asphalt adhering to asphalt, comprising a frame 1 and a feeding mechanism 2, a material conveying mechanism 3, a material separating mechanism 4 and a driving mechanism 5 arranged on the frame 1, wherein the material conveying mechanism 3 and the material separating mechanism 4 are both rotatably arranged. Specifically, the separating device further comprises a first motor 6 and a first driving shaft 61 connected thereto and a second motor 7 and a second driving shaft 71 connected thereto, the first driving shaft 61 being connected to the material conveying mechanism 3 for driving the material conveying mechanism 3 to rotate, the second driving shaft 71 being connected to the material separating mechanism 4 for driving the material separating mechanism 4 to rotate; the axis of the material conveying mechanism 3 is arranged parallel to the axis of the material separating mechanism 4, and the distance between the material conveying mechanism 3 and the material separating mechanism 4 is adjustable, and the driving mechanism 5 drives the material separating mechanism 4 to rotate. The mechanism 4 moves away from or close to the material conveying mechanism 3. There are two driving mechanisms 5, which are respectively arranged at both ends of the material separation mechanism 4. Specifically, the driving mechanism 5 includes an adjusting screw 51 and a connecting block 52. The connecting block 52 is fixedly connected to the frame 1. The connecting block 52 is hollow and has an internal thread in the cavity. The adjusting screw 51 is threadedly connected to the connecting block 52. The driving mechanism 5 also includes an elastic member 53, one end of the elastic member 53 is connected to the adjusting screw 51, and the other end is connected to the material separation mechanism 4. The adjusting screw 51 is manually screwed in and out of the connecting block 52, and the elastic member 53 is driven to perform stretching or compression deformation. The elastic member 53 applies force to the material separation mechanism 4, thereby prompting the material separation mechanism 4 to move away from or close to the material conveying mechanism 3.

[0035] An elastic member 53 is provided to increase the damping of the adjusting screw 51 during rotation. By cooperating with the adjusting screw 51 and the elastic member 53, precise adjustment of the distance between the material separation mechanism 4 and the material conveying mechanism 3 is achieved, ensuring that the material separation mechanism 4 slowly moves away from or approaches the material conveying mechanism 3, and avoiding the distance between the material separation mechanism 4 and the material conveying mechanism 3 being too large or too small due to the adjusting screw 51 being screwed in and out of the connecting block 52 too quickly. If the distance between the material separation mechanism 4 and the material conveying mechanism 3 increases too quickly, the asphalt milling material will fall directly without being separated. If the distance between the two decreases too quickly, the material will be stuck, resulting in equipment failure.

[0036] The elastic member 53 is preferably a spring, which increases the damping of the adjusting screw 51 during rotation to ensure fine adjustment of the distance between the material separation mechanism 4 and the material conveying mechanism 3.

[0037] The two ends of the material separation mechanism 4 are hinged to the frame 1. Specifically, the two ends of the material separation mechanism 4 are respectively connected to the frame 1 through a connecting piece 9 and a pin 10, so that the material separation mechanism 4 can approach or move away from the material conveying mechanism 3 under the action of the driving mechanism 5; more specifically, the connecting piece 9 is a connecting sleeve, and the connecting sleeve includes a connected connecting sleeve 1 91 and a connecting sleeve 2 92 and a connecting arm 93 fixedly connected to the connecting sleeve 1 91. The connecting sleeve 1 91 is sleeved on the second drive shaft 71, and a bearing is provided between the connecting sleeve and the second drive shaft 71, so that the second drive shaft 71 and both ends of the material separation mechanism 4 can be rotatably installed on the connecting sleeve, the connecting sleeve 2 92 is hinged to the frame 1 through the pin 10, and the elastic member 53 is connected to the connecting arm 93.

[0038] The material separation mechanism 4 includes a first roller 41, which is sleeved on the second drive shaft 71. The surface of the first roller 41 is provided with a through hole 42 and a material separation piece 43. The material separation piece 43 is an arc-shaped sheet structure. The arc-shaped sheet protrudes toward one side of the outer surface of the first roller 41 and extends above the through hole 42 to achieve the stripping of asphalt attached to the surface of the gravel, thereby achieving effective separation of the two.

[0039] The material conveying mechanism 3 is used to convey the material to the material separation mechanism 4 for separation operation. Specifically, the material conveying mechanism 3 includes a second roller 31, which is sleeved on the first drive shaft 61. The surface of the second roller 31 is provided with spiral blades 32 and vertical blades 33. The vertical blades are arranged in multiple rows along the circumference of the second roller 31, and each row is provided with a plurality of blades. The plurality of vertical blades 33 are sequentially arranged in the spiral gaps of the spiral blades 32, wherein the spiral blades 32 play the role of guiding and conveying the mixed material, improving the material conveying efficiency, and preventing the material from accumulating at the feeding mechanism 2 and causing blockage. The vertical blades 33 play the role of turning the material. During the rotation of the second roller 31, the material is turned over to ensure that the material repeatedly contacts the material separation mechanism 4 for stripping, and the contact surface between the material and the material separation mechanism 4 is continuously changed, so that all surfaces of the gravel are effectively stripped, so that the asphalt on the surface of the gravel is fully stripped, thereby improving the separation effect and processing efficiency of the material.

[0040] After the mixed material enters through the feeding mechanism 2, it is pushed by the rotation of the material conveying mechanism 3 and moves forward under the spiral guide of the spiral blade 32 to prevent the mixed material from accumulating at the feeding mechanism 2 and causing blockage; at the same time, the material separation mechanism 4 also rotates, and the material conveying mechanism 3 and the material separation mechanism 4 move toward each other. When the material separation mechanism 4 contacts the mixed material conveyed by the material conveying mechanism 3, it mills the surface of particles such as gravel. Specifically, the gravel to be separated enters the through hole 42 of the material separation mechanism 4, and the separation piece 43 at the through hole 42 mills the gravel, so that the gravel and other particles are fully separated from the asphalt material attached to their surface.

[0041] The frame 1 includes four support legs, which are interconnected by cross beams to form a stable frame 1 structure. A discharging mechanism 8 is also provided on the frame 1. The discharging mechanism 8 is an inclined square plate. The four top corners of the square plate are respectively connected to the four support legs, and the discharging mechanism 8 is provided below the material separation mechanism 4 to receive various materials (gravel and other particles and asphalt) separated by the material separation mechanism 4. The material can be collected after sliding along the inclined discharging mechanism 8. Subsequently, after vibration screening by the vibrating screen, the asphalt and gravel can be completely separated and recovered separately.

[0042] The feeding mechanism 2 includes a feeding port and a channel. The material falls into the channel through the feeding port. The channel is an inclined plate, which is used to allow the material to slide down to the material conveying mechanism 3 and the material separation mechanism 4 under the action of gravity. The channel has a first end and a second end. The first end is higher than the second end. A sealing cover 21 is provided above the second end to prevent the mixed material from splashing and injuring people during the falling process.

[0043] An upper cover plate 11 is provided on the upper portion of the frame 1, that is, an upper cover plate 11 is provided on the upper ends of the four bracket legs, and two first side plates 12 are provided on the side walls of the frame 1 to prevent the mixed material from splashing and injuring people during the conveying and separation process.

[0044] The asphalt milling material adhesion asphalt separation device provided by the present invention can effectively separate asphalt milling material and other waste asphalt mixture materials. The specific separation process is as follows: the mixture enters the end of the material conveying mechanism 3 and the material separation mechanism 4 through the feeding mechanism 2, the material conveying mechanism 3 and the material separation mechanism 4 rotate in opposite directions, and the spiral blades 32 of the material conveying mechanism 3 continuously convey the mixture forward, so that the mixture is distributed on the surface of the material separation mechanism 4 along the radial direction. At the same time, the through holes 42 and the material separation member 43 perform a milling and peeling of the asphalt. The peeled material is turned over by the rotating vertical blades 33, so that the other part of the mixture contacts the material separation mechanism 4 again, and the through holes 42 and the material separation member 43 perform a second milling and peeling of the asphalt. This process is repeated to achieve complete separation of crushed stone aggregate and asphalt. The present invention can fully separate asphalt from aggregates such as crushed stone and sand and gravel, with significant separation effect and improved separation efficiency. It can achieve continuous feeding and continuous separation. Moreover, the distance between the material conveying mechanism 3 and the material separation mechanism 4 is adjustable, which can effectively avoid the problem of material accumulation and blockage.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for separating asphalt from asphalt milling materials, characterized in that: It comprises a frame (1) and a feeding mechanism (2), a material conveying mechanism (3) and a material separation mechanism (4) arranged on the frame (1); the material conveying mechanism (3) and the material separation mechanism (4) are both rotatably arranged, and the distance between the material conveying mechanism (3) and the material separation mechanism (4) is adjustable; It also includes a driving mechanism (5) for driving the material separation mechanism (4) away from or close to the material conveying mechanism (3); the driving mechanism (5) includes an adjusting screw (51), a connecting block (52) and an elastic member (53); the connecting block (52) is arranged on the frame (1); the adjusting screw (51) is threadedly connected to the connecting block (52); one end of the elastic member (53) is connected to the adjusting screw (51), and the other end is connected to the material separation mechanism (4); The material separation mechanism (4) includes a first roller (41), and a through hole (42) and a material separation member (43) are provided on the surface of the first roller (41); the material separation member (43) is an arc-shaped sheet structure and is extended above the through hole (42); The material conveying mechanism (3) comprises a second roller (31), and the surface of the second roller (31) is provided with spiral blades (32) and vertical blades (33); The material separation mechanism (4) is hinged to the frame (1); The axis of the material conveying mechanism (3) is arranged parallel to the axis of the material separating mechanism (4); It also includes a first motor (6) and a first drive shaft (61) connected thereto, and a second motor (7) and a second drive shaft (71) connected thereto, wherein the first drive shaft (61) is connected to the material conveying mechanism (3) and is used to drive the material conveying mechanism (3) to rotate, and the second drive shaft (71) is connected to the material separation mechanism (4) and is used to drive the material separation mechanism (4) to rotate; The material conveying mechanism (3) and the material separating mechanism (4) move towards each other.

2. The device for separating asphalt from asphalt milling materials according to claim 1, characterized in that: It also includes a discharging mechanism (8), which is arranged below the material separation mechanism (4).

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