Asphalt recycling and crushing device

Abstract

The utility model relates to the technical field of asphalt recycling equipment, in particular to an asphalt recycling and smashing device which comprises a feeding part, a smashing part and a recycling part which are sequentially arranged, the feeding part comprises a crawler-type magnetic separation conveyor, a material lifting device connected with the smashing part is arranged at the discharging end of the crawler-type magnetic separation conveyor, and the smashing part comprises a shell. A crushing bin is arranged in the middle of the shell, a discharging bin is arranged on the lower portion of the shell, the recycling portion comprises a conveying belt, the feeding end of the conveying belt is located on the lower portion of the discharging bin, materials are subjected to magnetic separation through a crawler-type magnetic separation conveyor, and after magnetic impurities are removed, the materials subjected to magnetic separation are conveyed into the crushing portion through a lifting device to be crushed. Compared with existing smashing equipment, magnetic impurities can be removed from the materials subjected to magnetic separation, the purity of the materials is improved, and meanwhile damage to the equipment caused by the materials in the smashing operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt recycling equipment, and particularly relates to an asphalt recycling and crushing device. Background Art

[0002] With the continuous development of road construction and maintenance, asphalt, as the main material for road paving, has an increasing usage. However, during road repair and reconstruction, a large amount of waste asphalt is generated. If this waste asphalt is directly discarded, it will not only cause waste of resources but also pollute the environment. Therefore, the recycling and reuse of waste asphalt have become a current research hotspot.

[0003] During the recycling process of waste asphalt, a key step is to crush it for subsequent recycling. However, traditional asphalt recycling and crushing devices often neglect the magnetic impurities that may exist in asphalt during the crushing process. These magnetic impurities may come from metal waste in road construction, metal particles generated by vehicle wear, etc. They will not only affect the recycling quality of asphalt but may also damage the crushing equipment. Summary of the Utility Model

[0004] To solve the above problems, the embodiment of the utility model provides an asphalt recycling and crushing device capable of magnetic separation before crushing.

[0005] The embodiment of the utility model specifically adopts the following technical solutions to achieve the above object: An asphalt recycling and crushing device includes a feeding part, a crushing part, and a recycling part arranged in sequence. The feeding part includes a crawler-type magnetic separation conveyor, and a material lifting device connected to the crushing part is arranged at the discharge end of the crawler-type magnetic separation conveyor;

[0006] The crushing part includes a housing. A crushing chamber is arranged in the middle of the housing. A crushing assembly is arranged in the crushing chamber. A feed hopper is arranged above the crushing chamber, and a discharge hopper is arranged below it;

[0007] The recycling part includes a conveyor belt, and the feeding end of the conveyor belt is located below the discharge hopper.

[0008] As a further improvement of the above technical solution:

[0009] The crushing assembly includes a rotating shaft. Knife seats are arranged on the rotating shaft. Moving knives are arranged on the knife seats. Fixed knives cooperating with the moving knives are arranged on the side wall of the crushing chamber.

[0010] Positioning seats for installing the fixed knives are arranged on the inner side wall of the crushing chamber. The number of the positioning seats is two and they are respectively located on both sides of the knife seat.

[0011] A sieve plate is arranged at the bottom of the crushing bin, and two ends of the sieve plate are respectively connected to two positioning seats.

[0012] The lifting device includes an inclined belt conveyor. A hinge seat is arranged at the lower part of the belt conveyor, a cross brace connected to the feed hopper is arranged at the upper part, and a receiving hopper is arranged on the surface of the belt conveyor.

[0013] The number of the receiving hoppers is multiple, and each is detachably connected to the belt conveyor.

[0014] The beneficial effects of the embodiment of the present utility model are as follows: 1. The asphalt recycling and crushing device includes a feeding part, a crushing part and a recycling part arranged in sequence. The feeding part includes a crawler magnetic separation conveyor. The discharging end of the crawler magnetic separation conveyor is provided with a material lifting device connected to the crushing part. The crushing part includes a housing. A crushing bin is arranged in the middle of the housing, and a blanking bin is arranged at the lower part. The recycling part includes a conveyor belt. The feeding end of the conveyor belt is located below the blanking bin. The crawler magnetic separation conveyor is used to perform magnetic separation on the material. After removing magnetic impurities, the magnetically separated material is conveyed to the crushing part by the lifting device for crushing operation. Compared with the existing crushing equipment, the material after magnetic separation can remove magnetic impurities, improve the purity of the material, and at the same time avoid damage to the equipment during the crushing operation.

[0015] 2. The crushing assembly includes a rotating shaft. A tool holder is arranged on the rotating shaft, a moving knife is arranged on the tool holder, and a fixed knife cooperating with the moving knife is arranged on the side wall of the crushing bin. Both the moving knife and the fixed knife are selected to be strip-shaped. The tool holder includes a sleeve connected to the rotating shaft. A triangular clamping plate is installed on the sleeve. Clamping cantilevers for installing the moving knife are arranged at three top corners of the clamping plate. The number of the clamping plates is multiple and they are evenly distributed along the length direction of the moving knife. The crushing of the material is realized by the moving knife applying a shearing force to the material in cooperation with the fixed knife during rotation, reducing the particle size of the material. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the top view of the present utility model;

[0018] Figure 3 is Figure 2 the sectional view along A-A;

[0019] Figure 4 is the structural schematic diagram of the crushing assembly in the present utility model.

[0020] In the figure: 1. Feeding part; 2. Crushing part; 3. Recycling part; 4. Track type magnetic separation conveyor; 5. Shell; 6. Crushing bin; 7. Feed hopper; 8. Discharge bin; 9. Conveyor belt; 10. Receiving hopper; 11. Rotating shaft; 12. Tool holder; 13. Moving knife; 14. Fixed knife; 15. Positioning seat; 16. Sieve plate; 17. Belt conveyor; 18. Hinge seat; 19. Cross brace. Specific embodiments

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0022] As Figures 1-4 shown, the asphalt recycling and crushing device of this embodiment includes a feeding part 1, a crushing part 2 and a recycling part 3 arranged in sequence. The feeding part 1 includes a track type magnetic separation conveyor 4. A material lifting device connected to the crushing part 2 is arranged at the discharge end of the track type magnetic separation conveyor 4. The crushing part 2 includes a shell 5. A crushing bin 6 is arranged in the middle of the shell 5. A crushing assembly is arranged in the crushing bin 6. A feed hopper 7 is arranged above the crushing bin 6. A guide plate is arranged on the side of the feed hopper 7 facing the feeding part 1. The inclined design of the guide plate can equalize the material during the process of guiding the material to fall, avoiding the phenomenon of material aggregation during the falling process and affecting the crushing effect. A discharge bin 8 is arranged at the lower part. The recycling part 3 includes a conveyor belt 9. The feeding end of the conveyor belt 9 is located at the lower part of the discharge bin 8. The track type magnetic separation conveyor 4 is used to perform magnetic separation on the material. After removing the magnetic impurities, the magnetically separated material is conveyed to the crushing part 2 through the lifting device for crushing operation. Compared with the existing crushing equipment, the material after magnetic separation can remove magnetic impurities, improve the purity of the material, and at the same time avoid damage to the equipment during the crushing operation.

[0023] The crushing assembly includes a rotating shaft 11. A tool holder 12 is arranged on the rotating shaft 11. A moving knife 13 is arranged on the tool holder 12. A fixed knife 14 cooperating with the moving knife 13 is arranged on the side wall of the crushing bin 6. The material is crushed by the cooperation of the moving knife 13 and the fixed knife 14 when the moving knife 13 rotates to apply a shearing force to the material, reducing the particle size of the material. Both the moving knife 13 and the fixed knife 14 are selected to be strip-shaped. The tool holder 12 includes a sleeve connected to the rotating shaft 11. A triangular clamping plate is installed on the sleeve. Clamping cantilevers for installing the moving knife 13 are arranged at the three top corners of the clamping plate. The number of clamping plates is multiple and they are evenly distributed along the length direction of the moving knife 13.

[0024] Positioning seats 15 for installing the fixed knife 14 are arranged on the inner side wall of the crushing bin 6. The number of positioning seats 15 is two and they are respectively located on both sides of the tool holder 12. The fixed knife 14 is also strip-shaped and a fine gap is reserved between it and the moving knife.

[0025] A sieve plate 16 is provided at the bottom of the crushing bin 6. The two ends of the sieve plate 16 are respectively connected to two positioning seats 15. The function of the sieve plate 16 is to block materials with large particle sizes. At the same time, after the two ends are connected to the positioning seats 15, the two fixed knives 14 can play a role in blocking materials during rotation, improving the crushing efficiency.

[0026] The lifting device includes a belt conveyor 17 arranged obliquely. An articulated seat 18 is provided at the lower part of the belt conveyor 17, and a cross brace 19 connected to the feed hopper 7 is provided at the upper part. The inclination angle of the belt conveyor 17 can be adjusted by using the articulated seat 18 and the cross brace 19. The cross brace 19 can also adjust the distance between the belt conveyor 17 and the feed hopper 7. A receiving hopper 10 is provided on the surface of the belt conveyor 17. The receiving hopper 10 can achieve quantitative feeding. Compared with the traditional continuous feeding, it can avoid the accumulation of materials at the crushing part 2.

[0027] The number of the receiving hoppers 10 is multiple, and each is detachably connected to the belt conveyor 17 by bolts.

[0028] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or position relationships are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] The term "including" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices / equipment.

[0031] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present utility model.

Claims

1. An asphalt recycling and crushing device, comprising a feeding part (1), a crushing part (2) and a recycling part (3) arranged in sequence, characterized in that: The feeding section (1) includes a crawler magnetic separation conveyor (4), and a material lifting device connected to the crushing section (2) is arranged at the discharge end of the crawler magnetic separation conveyor (4); The crushing section (2) includes a housing (5), a crushing chamber (6) is arranged in the middle of the housing (5), a crushing assembly is arranged in the crushing chamber (6), a feed hopper (7) is arranged above the crushing chamber (6), and a blanking bin (8) is arranged below; The recycling section (3) includes a conveyor belt (9), and the feeding end of the conveyor belt (9) is located below the blanking bin (8).

2. The asphalt recycling and crushing device according to claim 1, characterized in that: The crushing assembly includes a rotating shaft (11), a tool holder (12) is arranged on the rotating shaft (11), a moving cutter (13) is arranged on the tool holder (12), and a fixed cutter (14) cooperating with the moving cutter (13) is arranged on the side wall of the crushing chamber (6).

3. The asphalt recycling and crushing device according to claim 2, wherein: Positioning seats (15) for installing the fixed cutter (14) are arranged on the inner side wall of the crushing chamber (6), and the number of the positioning seats (15) is two and they are respectively located on both sides of the tool holder (12).

4. The asphalt recycling and crushing device according to claim 3, characterized in that: A sieve plate (16) is arranged at the bottom of the crushing chamber (6), and both ends of the sieve plate (16) are respectively connected to the two positioning seats (15).

5. The asphalt recycling and crushing device according to claim 1, wherein: The lifting device includes an inclined belt conveyor (17), a hinge seat (18) is arranged below the belt conveyor (17), a cross brace (19) connected to the feed hopper (7) is arranged above, and a receiving hopper (10) is arranged on the surface of the belt conveyor (17).

6. The asphalt recycling and crushing device according to claim 5, characterized in that: The number of the receiving hoppers (10) is multiple and each is detachably connected to the belt conveyor (17).

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