Asphalt recycling and crushing equipment

Abstract

The invention discloses asphalt recycling and crushing equipment, belongs to the technical field of asphalt recycling, and aims to solve the problem that the asphalt recycling effect is affected due to the fact that asphalt particles are easy to adhere to the surfaces of stones and asphalt adhered to the stones is difficult to peel off The asphalt recycling and crushing equipment comprises a supporting frame, and a feeding hopper is arranged in the supporting frame; a conveying assembly is arranged in the supporting frame and communicates with the feeding hopper, a cooling embrittlement assembly is arranged on one side of the conveying assembly, a detection assembly is arranged on one side of the conveying assembly, a supporting base is arranged on one side of the conveying assembly, a smashing assembly is arranged on the top of the supporting base, a vibrating screen is arranged in the supporting base, and a screen mesh is arranged in the vibrating screen. According to the asphalt recycling device, a low-temperature environment can be continuously provided in the material conveying process, so that waste asphalt is embrittled to form brittle connection with stones, the problem of incomplete stripping caused by asphalt viscosity is avoided, and the asphalt recycling efficiency and the recycling purity are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt recycling, in particular to an asphalt recycling and crushing device. BACKGROUND

[0002] The asphalt recycling and crushing device is a special device for resource recycling of waste asphalt mixture, which can effectively separate the aggregate such as stone blocks mixed in the waste asphalt and the asphalt, and realize recycling and reuse of the asphalt resource. In the engineering fields such as road repair, bridge demolition and construction waste treatment, a large amount of waste materials containing asphalt will be generated. In order to improve the structural strength and bearing capacity of the pavement and the component, stone blocks of certain specifications are mixed as aggregate during the paving and use of asphalt, forming an asphalt and aggregate composite structure. On the other hand, a small amount of natural stone blocks in the environment may also be mixed in the collection and transportation process of waste asphalt materials, resulting in the presence of stone blocks in the asphalt to be recycled.

[0003] At present, the asphalt recycling and crushing device usually first pre-crushes the waste asphalt mixture through a crushing mechanism to create conditions for the subsequent asphalt and stone block separation process. However, due to the viscosity of asphalt, the asphalt particles after pre-crushing are prone to adhere to the surface of the stone blocks, forming a firm adhesion layer, which makes it difficult to separate the asphalt adhered to the stone blocks, thereby affecting the recycling effect of the asphalt and reducing the recycling efficiency and resource utilization rate of the asphalt.

[0004] In view of the above problems, an asphalt recycling and crushing device is provided. SUMMARY

[0005] The present application aims to provide an asphalt recycling and crushing device, which solves the problem of asphalt particles easily adhering to the surface of stone blocks and being difficult to separate the asphalt adhered to the stone blocks, thereby affecting the recycling effect of the asphalt.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: An asphalt recycling and crushing device, comprising a support frame, an upper hopper is arranged in the support frame, a conveying assembly is arranged in the support frame, the conveying assembly is communicated with the upper hopper, a cooling and embrittlement assembly is arranged on one side of the conveying assembly, a detection assembly is arranged on one side of the conveying assembly, a support seat is arranged on one side of the conveying assembly, a crushing assembly is arranged on the top of the support seat, a vibrating screen is arranged in the support seat, a screen is arranged in the vibrating screen, a gas pumping assembly is communicated with the conveying assembly on one side, the gas pumping assembly is connected with the crushing assembly, a cleaning assembly is arranged in the conveying assembly, a cooling assembly is arranged on one side of the crushing assembly, the cooling assembly is communicated with the gas pumping assembly, a anti-adhesion assembly is rotatably arranged at one end of the crushing assembly, the anti-adhesion assembly is communicated with the cooling assembly, the anti-adhesion assembly is connected with the support seat, a rubbing and throwing assembly is arranged on one side of the vibrating screen, and the rubbing and throwing assembly is attached to the vibrating screen.

[0007] Furthermore, the conveying assembly includes a cylinder fixedly connected to the support frame, a feeding hopper communicating with the cylinder, a first motor installed at one end of the cylinder, a first rotating shaft fixedly connected to the output end of the first motor, the first rotating shaft being rotatably connected to the cylinder, and a spiral blade fixedly connected to the outer wall of the first rotating shaft.

[0008] Furthermore, the cooling and embrittlement assembly includes a cooling fan installed in the support frame, an air outlet of the cooling fan connected to an air outlet pipe, a fixing sleeve fixedly connected to the outer wall of the cylinder, an insulation sleeve fixedly connected to the outer wall of the fixing sleeve, a cooling chamber formed between the fixing sleeve and the cylinder, an air outlet pipe fixedly connected to the insulation sleeve, and a support rod fixedly connected to the outer wall of the insulation sleeve.

[0009] Furthermore, the detection component includes a temperature sensor installed on the outer wall of the cylinder, a connecting pipe connected to one side of the cylinder, and a one-way valve connected to one end of the connecting pipe.

[0010] Furthermore, the crushing assembly includes a housing connected to the top of the support base, with a first protective shell and a second protective shell fixedly connected to each other on both sides of the housing. A second motor is installed inside the first protective shell, and two second rotating shafts are rotatably connected in parallel inside the housing. The output end of the second motor is fixedly connected to one of the second rotating shafts. A gear is fixedly connected to one end of each of the two second rotating shafts, and the two gears mesh with each other. Crushing rollers are fixedly connected to the outer walls of each of the two second rotating shafts.

[0011] Furthermore, the air pump assembly includes a second air inlet pipe connected to one end of the cylinder, a suction fan installed on one side of the second protective shell, the second air inlet pipe connected to the air inlet of the suction fan, the air outlet of the suction fan connected to a first air outlet pipe, one end of the first air outlet pipe connected to a first branch pipe, and both ends of the first branch pipe connected to exhaust pipes.

[0012] Furthermore, the cleaning assembly includes a connecting ring fixedly connected to the outer wall of the first rotating shaft, a cleaning brush fixedly connected to the outer wall of the connecting ring, and a filter screen provided on the inner wall of one end of the cylinder, with the cleaning brush and the filter screen in contact.

[0013] Furthermore, the cooling component includes two rotary joints fixedly connected inside the second protective shell, two exhaust pipes respectively connected to the two rotary joints, two second rotating shafts respectively rotatably connected to the two rotary joints, one end of each of the two second rotating shafts is provided with an air inlet groove, the air inlet groove is connected to the rotary joint, and the other end of each of the two second rotating shafts is provided with an air outlet groove, and a connecting groove is provided inside the crushing roller, the air inlet groove and the air outlet groove are both connected to the connecting groove.

[0014] Furthermore, the anti-sticking component includes two ventilation sleeves rotatably connected to the outer walls of the two second rotating shafts, both ventilation sleeves being fixedly connected to the housing, the air outlet groove communicating with the ventilation sleeves, a second air outlet pipe communicating with one side of each of the two ventilation sleeves, a second branch pipe communicating with one end of the second air outlet pipe, a U-shaped pipe communicating with one side of the second branch pipe, the U-shaped pipe being fixedly connected to the support base, a third branch pipe communicating with one end of the U-shaped pipe, a plurality of jet pipes communicating evenly with one side of the third branch pipe, a spiral pipe communicating with one end of the jet pipes, a plurality of spiral grooves being evenly opened inside the spiral pipe, and an L-shaped recovery cover being provided inside the support base.

[0015] Furthermore, the kneading and tossing assembly includes a fixed shell fixedly connected to one side of the vibrating screen, a third protective shell fixedly connected to one side of the fixed shell, a third motor installed on one side of the fixed shell, the third protective shell covering the outside of the third motor, a third rotating shaft fixedly connected to the output end of the third motor, a circular plate fixedly connected to one end of the third rotating shaft, a connecting rod rotatably connected to the outer edge of one side of the circular plate, and a push-pull rod rotatably connected to the other end of the connecting rod. The push-pull rod is slidably connected to the fixed shell and the vibrating screen respectively, and a triangular rod is fixedly connected to one end of the push-pull rod. The triangular rod is in contact with the screen, and several protrusions are evenly arranged on one side of the triangular rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By coordinating the cooling and embrittlement components with the conveying components, a low-temperature environment is continuously provided during the material conveying process, which causes the waste asphalt to embrittle and form a brittle bond with the stones, avoiding the problem of incomplete peeling caused by the stickiness of asphalt, and improving the efficiency and purity of asphalt recycling. By coordinating the detection components and the cooling and embrittlement components, the temperature of the cooling chamber is monitored in real time. When the temperature rises, the cooling fan is activated in time to replenish the cooling air, while excess gas is discharged through the one-way valve to facilitate the maintenance of a stable low-temperature environment, ensure the embrittlement effect of the material, and avoid the impact of temperature fluctuations on the peeling quality. By coordinating the air pumping components, cooling components, and anti-sticking components, the cooling gas is recycled, which not only cools the crushing components to prevent asphalt from sticking back together, but also provides cooling airflow to blow away dust during the screening process. No additional air source is required, which facilitates improved energy efficiency and prevents dust from re-adhering. By combining the vibrating screen with the kneading and throwing components, the stones are kneaded and thrown up with the help of triangular rods and protrusions while vibrating and screening, removing residual asphalt from the surface. It can also raise dust to facilitate the recycling of the anti-sticking components, breaking through the limitations of single vibration, making it easier to deepen the peeling effect and reduce asphalt residue on the stones. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall side view structure of the present invention; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 for Figure 3 Enlarged view of point B; Figure 6 This is a cross-sectional structural diagram showing the connection relationship between the conveying component, the pumping component, and the cleaning component of the present invention. Figure 7 for Figure 6 Enlarged view of point C; Figure 8 This is a schematic diagram of the overall main structure of the present invention; Figure 9 for Figure 8 Enlarged view of point D; Figure 10 for Figure 8 Enlarged view of point E; Figure 11 This is a cross-sectional structural diagram showing the connection relationship between the crushing component, the air pumping component, and the anti-sticking component of the present invention. Figure 12 for Figure 11 Enlarged view at point F; Figure 13 for Figure 11 Enlarged view of point G; Figure 14 This is a schematic diagram of the anti-stick component structure of the present invention; Figure 15 This is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 16 This is a schematic diagram of the overall side cross-sectional structure of the present invention; Figure 17 for Figure 16 Enlarged view of point H; Figure 18 This is a cross-sectional structural diagram showing the connection relationship between the vibrating screen, the screen mesh, and the kneading and agitating assembly of the present invention. Figure 19 for Figure 18 Enlarged view of point I.

[0018] In the diagram: 1. Support frame; 11. Feeding hopper; 2. Conveying assembly; 21. Cylinder; 22. First motor; 23. First rotating shaft; 24. Spiral blades; 3. Cooling and embrittlement assembly; 31. Refrigeration fan; 32. Air outlet pipe; 33. Fixing sleeve; 34. Insulation sleeve; 35. Cooling chamber; 36. Support rod; 4. Detection assembly; 41. Temperature sensor; 42. Connecting pipe; 43. One-way valve; 5. Support base; 6. Crushing assembly; 61. Housing; 62. First protective shell; 63. Second motor; 64. Second rotating shaft; 65. Gear; 66. Second protective shell; 67. Crushing roller; 7. Vibrating screen; 71. Screen; 8. Air pump assembly; 81. Second air inlet pipe; 82. Suction fan; 83. First air outlet pipe; 84. ... 85. Exhaust pipe; 9. Cleaning assembly; 91. Connecting ring; 92. Cleaning brush; 93. Filter screen; 10. Cooling assembly; 101. Rotary joint; 102. Air inlet slot; 103. Connecting slot; 104. Air outlet slot; 20. Anti-stick assembly; 201. Ventilation sleeve; 202. Second air outlet pipe; 203. Second branch pipe; 204. U-shaped pipe; 205. Third branch pipe; 206. Jet pipe; 207. Spiral pipe; 208. Spiral groove; 209. L-shaped recovery cover; 30. Kneading and throwing assembly; 301. Fixing shell; 302. Third protective shell; 303. Third motor; 304. Third rotating shaft; 305. Round plate; 306. Connecting rod; 307. Push-pull rod; 308. Triangular rod; 309. Protrusion. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To address the technical problem of asphalt particles easily adhering to the surface of stones, making it difficult to peel off the asphalt adhering to the stones, thus affecting the asphalt recycling effect, such as... Figures 1-18 As shown, the following preferred technical solutions are provided: like Figure 1As shown, an asphalt recycling and crushing device includes a support frame 1, which can support and fix various components. A controller is installed on one side of the support frame 1 to control various electrical components. The controller is existing technology and is not shown in the figure. A feeding hopper 11 is provided inside the support frame 1. A conveying assembly 2 is also provided inside the support frame 1. The conveying assembly 2 can convey pre-crushed waste asphalt material. The conveying assembly 2 is connected to the feeding hopper 11. A cooling and embrittlement assembly 3 is provided on one side of the conveying assembly 2. The cooling and embrittlement assembly 3 can cool the waste asphalt material during the conveying process, making it embrittled, which facilitates better separation of asphalt and stones during subsequent crushing, thereby improving the recycling effect. Figure 3 As shown, a detection component 4 is provided on one side of the conveying component 2. The detection component 4 can detect the temperature inside the cooling and embrittlement component 3 and replenish the cooling air through the cooling and embrittlement component 3 in time when the temperature rises to maintain the cooling effect.

[0021] A support base 5 is provided on one side of the conveying component 2, and a crushing component 6 is provided on the top of the support base 5. The crushing component 6 can crush the cooled and embrittled waste asphalt material, facilitating the recycling of asphalt. A vibrating screen 7 is provided inside the support base 5, and a screen 71 is provided inside the vibrating screen 7. The vibrating screen 7 and the screen 71 can screen the crushed waste asphalt material, allowing the fine asphalt particles after embrittlement to fall through the screen 71 and intercept stones. At the same time, the vibration accelerates the material stripping, preventing asphalt particles from remixing with stones. The screen 71 is also inclined, which facilitates the movement of stones on the screen 71 to a lower position by gravity and vibration, avoiding material accumulation that affects screening efficiency. A pumping component 8 is connected to one side of the conveying component 2, and the pumping component 8 is connected to the crushing component 6. Figure 6 As shown, a cleaning component 9 is provided inside the conveying component 2. The cleaning component 9 can filter impurities such as asphalt dust in the cooling gas inside the conveying component 2 through its internal filter structure, so as to avoid affecting the use of the pumping component 8.

[0022] like Figure 8 As shown, a cooling component 10 is provided on one side of the crushing component 6. The cooling component 10 is connected to the air pumping component 8. The cooling gas in the conveying component 2 is pumped into the crushing component 6 through the air pumping component 8 and then into the crushing component 6 through the cooling component 10. This can cool the crushing component 6 and prevent the heat generated during the crushing process from causing the asphalt to melt and re-adhere to the stones, ensuring that the asphalt and stones are continuously and effectively separated, thus guaranteeing the subsequent screening and recycling effect. An anti-sticking component 20 is rotatably provided at one end of the crushing component 6. The anti-sticking component 20 is connected to the cooling component 10 and is connected to the support base 5. During the process of the crushed asphalt particles and stones falling onto the vibrating screen 7 for vibrating screening, some asphalt dust will be raised. At this time, the anti-sticking component 20 can blow the asphalt dust to one side for recycling, preventing the asphalt dust from re-adhering to the stone surface and improving the recycling effect.

[0023] In use, the pre-crushed waste asphalt material enters the conveying component 2 through the feeding hopper 11. The controller enables the conveying component 2 to transport the waste asphalt material. During the conveying process, the cooling and embrittlement component 3 simultaneously cools the waste asphalt material, facilitating its embrittlement and forming a brittle bond between the asphalt and the stones. Compared with existing technologies, this effectively avoids the problem of incomplete peeling of asphalt due to its stickiness, thus improving the efficiency and purity of asphalt recycling. Afterward, the embrittled waste asphalt material falls into the crushing component 6 for crushing, facilitating the rapid separation and crushing of the asphalt from the stones while it is still embrittled. This allows the brittle bonded asphalt to detach from the stone surface, forming fine asphalt particles that are easy to screen. The crushed waste asphalt material then falls onto the screen 71 in the vibrating screen 7. The controller enables the vibrating screen 7 to drive the screen 71 to vibrate and screen the crushed waste asphalt material, facilitating the rapid screening of fine asphalt particles and intercepted stones. At the same time, the vibration accelerates material stratification, reducing the remixing or adhesion of asphalt particles and stones.

[0024] Meanwhile, during the conveying, crushing, and screening processes, the controller enables the cooling gas in the conveying component 2 to be pumped into the crushing component 6 through the cooling component 10 via the air pumping component 8. This allows for real-time cooling of the crushing structure within the crushing component 6, facilitating the maintenance of a low-temperature environment for both the crushing component 6 and the material. This prevents the asphalt from melting and re-adheding due to frictional heat during crushing. Compared to existing technologies, this eliminates the need for an additional independent cooling gas source, enabling the recycling of the cooling gas. It also provides more timely cooling, effectively avoiding localized overheating and ensuring continuous and efficient separation of asphalt from stones. This further enhances the purity of the recycled material and the energy efficiency of the equipment operation.

[0025] Subsequently, the cooled gas from the crushing component 6 enters the anti-sticking component 20, providing a continuous cooling airflow to the anti-sticking component 20 to blow towards the vibrating screen 7, promptly blowing the asphalt dust raised during screening towards the recycling area. Compared to existing technologies, there is no need to configure a separate cooling air source for the anti-sticking component 20, realizing the reuse of cooling gas, which is more energy-efficient and has a stable airflow temperature. This effectively prevents asphalt dust from re-adhering to stones or equipment due to temperature rise, further improving the efficiency and purity of asphalt recycling.

[0026] A kneading and throwing component 30 is provided on one side of the vibrating screen 7. The kneading and throwing component 30 is in close contact with the vibrating screen 7. During the screening process of the vibrating screen 7, the kneading and throwing component 30 can knead and peel off the stones on the screen 71, and throw the stones to a certain height, so that the asphalt that has not been completely removed from the surface of the stones is rubbed off. At the same time, the asphalt dust raised can be blown to the recycling area by the anti-sticking component 20, further reducing the asphalt residue on the stones and improving the asphalt recycling effect.

[0027] During the process of vibrating and screening the crushed waste asphalt material by the vibrating screen 7 and the screen mesh 71, the controller causes the kneading and throwing component 30 to reciprocate on the screen mesh 71. This facilitates the active kneading and throwing of the stones that are gradually moving down on the screen mesh 71, removing the residual asphalt from the surface of the stones. At the same time, the asphalt dust is raised for the anti-sticking component 20 to collect. Compared with the existing technology, this technology breaks through the limitation of relying solely on the vibration and separation of the vibrating screen 7. It adds a deep processing step of active kneading, resulting in better peeling effect, significantly reducing the asphalt residue on the stones, and further improving the purity of asphalt recycling and the overall recycling efficiency.

[0028] like Figures 2-7 As shown, the conveying assembly 2 includes a cylinder 21 fixedly connected to the support frame 1, a feeding hopper 11 connected to the cylinder 21, a first motor 22 installed at one end of the cylinder 21, a first rotating shaft 23 fixedly connected to the output end of the first motor 22, the first rotating shaft 23 being rotatably connected to the cylinder 21, and a spiral blade 24 fixedly connected to the outer wall of the first rotating shaft 23.

[0029] like Figures 2-5 As shown, the cooling and embrittlement assembly 3 includes a cooling fan 31 installed within the support frame 1. The cooling fan 31 generates low-temperature cold air to provide a continuous cooling source for the waste asphalt material inside the cylinder 21, ensuring a stable supply of cold air to meet the temperature conditions required for asphalt embrittlement. The air outlet of the cooling fan 31 is connected to an air outlet pipe 32. A fixing sleeve 33 is fixedly connected to the outer wall of the cylinder 21, and an insulation sleeve 34 is fixedly connected to the outer wall of the fixing sleeve 33. The insulation sleeve 34 effectively blocks heat exchange between the cooling chamber 35 and the external environment, reducing the loss of cold energy within the cooling chamber 35 and maintaining cooling. The low-temperature environment stability inside cavity 35 reduces the recooling frequency of refrigeration fan 31 and improves the energy efficiency of cooling embrittlement. A cooling cavity 35 is formed between the fixed sleeve 33 and the cylinder 21. The cooling cavity 35 can accommodate the low-temperature cold air delivered by refrigeration fan 31, so that the cold air evenly wraps the outer wall of cylinder 21. Through the heat transfer effect of the cylinder 21 wall, the low temperature is conducted to the waste asphalt material inside, realizing efficient and uniform cooling of the material and providing space conditions for asphalt embrittlement. The air outlet duct 32 is fixedly connected to the insulation sleeve 34, and a support rod 36 is fixedly connected to the outer wall of the insulation sleeve 34.

[0030] like Figures 4-5As shown, the detection component 4 includes a temperature sensor 41 installed on the outer wall of the cylinder 21. The temperature sensor 41 can detect the temperature inside the cooling chamber 35 and transmit the temperature signal to the controller so that the controller can start the cooling fan 31 to supplement cooling when the temperature rises. A connecting pipe 42 is connected to one side of the cylinder 21, and a one-way valve 43 is connected to one end of the connecting pipe 42. The one-way valve 43 can discharge excess gas generated by the cooling fan 31 or the temperature change in the cooling chamber 35 through the connecting pipe 42 in one direction, while preventing ambient air or impurities from entering the cooling chamber 35 in reverse, thus maintaining the stability and sealing of the low temperature environment inside the chamber.

[0031] During the transportation of waste asphalt material, when the temperature of the cooling chamber 35 rises and the temperature sensor 41 determines that it exceeds the normal range, the controller causes the cooling fan 31 to deliver low-temperature cold air to the cooling chamber 35 through the air outlet 32. At the same time, the one-way valve 43 discharges the excess gas generated in the chamber due to the temperature rise, quickly reducing the temperature in the cooling chamber 35 to the range required for asphalt embrittlement and maintaining the cooling effect of the material in the cylinder 21.

[0032] like Figure 2 , Figures 8-13 and Figure 15 As shown, the crushing assembly 6 includes a housing 61 connected to the top of the support base 5. A first protective shell 62 and a second protective shell 66 are fixedly connected to each other on both sides of the housing 61. A second motor 63 is installed inside the first protective shell 62. Two second rotating shafts 64 are rotatably connected in parallel inside the housing 61. The output end of the second motor 63 is fixedly connected to one of the second rotating shafts 64. A gear 65 is fixedly connected to one end of each of the two second rotating shafts 64. The two gears 65 mesh with each other. Crushing rollers 67 are fixedly connected to the outer walls of each of the two second rotating shafts 64.

[0033] like Figure 2 , Figures 6-8 , Figures 10-11 , Figure 13 and Figure 15 As shown, the air pump assembly 8 includes a second air inlet pipe 81 connected to one end of the cylinder 21, a suction fan 82 installed on one side of the second protective shell 66, the second air inlet pipe 81 being connected to the air inlet of the suction fan 82, the air outlet of the suction fan 82 being connected to a first air outlet pipe 83, one end of the first air outlet pipe 83 being connected to a first branch pipe 84, and both ends of the first branch pipe 84 being connected to exhaust pipes 85.

[0034] like Figure 7As shown, the cleaning component 9 includes a connecting ring 91 fixedly connected to the outer wall of the first rotating shaft 23. A cleaning brush 92 is fixedly connected to the outer wall of the connecting ring 91. The cleaning brush 92 is connected to the connecting ring 91 via a screw, which facilitates maintenance and replacement by the user. A filter screen 93 is provided on the inner wall of one end of the cylinder 21. The filter screen 93 can filter out fine impurities such as asphalt dust in the cooling gas in the conveying component 2, preventing them from entering the suction fan 82 of the pumping component 8 and subsequent pipelines with the airflow, preventing internal blockage or component wear, and ensuring the clean and stable operation of the gas circulation system. The cleaning brush 92 is in contact with the filter screen 93. During the rotation of the first rotating shaft 23, it can drive the cleaning brush 92 to clean the dust attached to one side of the filter screen 93 in a timely manner, which helps to maintain the air permeability of the filter screen 93, prevents dust accumulation from clogging the filter screen 93 and affecting the suction efficiency of the pumping component 8, and at the same time reduces the frequency of manual disassembly and cleaning of the filter screen 93, reduces equipment maintenance costs, and ensures smooth circulation of cooling gas to ensure the overall cooling effect.

[0035] like Figure 10 and Figures 12-13 As shown, the cooling assembly 10 includes two rotary joints 101 fixedly connected inside the second protective shell 66, two exhaust pipes 85 respectively connected to the two rotary joints 101, two second rotating shafts 64 respectively rotatably connected to the two rotary joints 101, one end of each of the two second rotating shafts 64 is provided with an air inlet groove 102, the air inlet groove 102 is connected to the rotary joint 101, and the other end of each of the two second rotating shafts 64 is provided with an air outlet groove 104. A connecting groove 103 is provided inside the crushing roller 67, and the air inlet groove 102 and the air outlet groove 104 are both connected to the connecting groove 103.

[0036] like Figures 8-9 , Figures 11-12 , Figure 14 and Figure 16 As shown, the anti-stick component 20 includes two ventilation sleeves 201 rotatably connected to the outer walls of two second rotating shafts 64. The two ventilation sleeves 201 are rotatably connected to the two second rotating shafts 64 through sealed bearings, so that the ventilation sleeves 201 can be kept fixed when the second rotating shafts 64 rotate to stably receive the cooling gas delivered by the air outlet slot 104. At the same time, the sealing effect prevents gas leakage and dust intrusion, ensuring stable airflow transmission between the anti-stick component 20 and the cooling component 10. Both ventilation sleeves 201 are fixedly connected to the housing 61. The air outlet slot 104 is connected to the ventilation sleeves 201. A second air outlet pipe 202 is connected to one side of each of the two ventilation sleeves 201. A second branch pipe 203 is connected to one end of the second air outlet pipe 202. A U-shaped pipe 204 is connected to one side of the second branch pipe 203. The U-shaped pipe 204 is fixedly connected to the support base 5. A third branch pipe 205 is connected to one end of the U-shaped pipe 204. Several jet pipes 206 are evenly connected to one side of the third branch pipe 205.

[0037] One end of the jet pipe 206 is connected to a spiral pipe 207. Several spiral grooves 208 are evenly opened inside the spiral pipe 207. An L-shaped recovery hood 209 is installed inside the support base 5. The spiral grooves 208 enable the cooling airflow inside the spiral pipe 207 to form a spiral flow, expanding the coverage of the airflow in the screening area of ​​the vibrating screen 7. At the same time, it enhances the entrainment force of the airflow on the asphalt dust, making it easier for the dust to be blown in a direction towards the L-shaped recovery hood 209, avoiding dust dispersion and drift, and improving the dust capture effect. Meanwhile, the L-shaped recovery hood 209 is arranged opposite to several jet pipes 206 and spiral pipes 207, and the recovery port of the L-shaped recovery hood 209 is set in a conical shape, which facilitates the collection of asphalt dust blown by the airflow through the conical structure, expands the effective adsorption range of the recovery port, reduces dust escape, and improves the recovery efficiency of asphalt dust.

[0038] In operation, pre-crushed waste asphalt material enters the cylinder 21 through the feeding hopper 11. A controller activates the first motor 22, which drives the first rotating shaft 23 and the spiral blades 24 to rotate, conveying the waste asphalt material. During conveying, a cooling fan 31 blows cold air into the cooling chamber 35 to cool the conveyed waste asphalt material, causing it to become brittle and form a brittle bond between the asphalt and the stones. Compared to existing technologies, this effectively avoids the problem of incomplete peeling of asphalt due to its stickiness, improving asphalt recycling efficiency and purity. The brittle waste asphalt material then falls into the shell 61, and a controller activates the second motor 63, which drives one of the second rotating shafts 64 to rotate. The meshing of two gears 65 causes another second rotating shaft 64 to rotate synchronously, which in turn drives two crushing rollers 67 to rotate relative to each other, crushing the cooled and embrittled waste asphalt material. This facilitates the rapid separation and crushing of the asphalt from the stones in its embrittled state, allowing the brittle asphalt to detach from the stone surface and form fine asphalt particles that are easy to screen. The crushed waste asphalt material then falls onto the screen 71 inside the vibrating screen 7. Through the controller, the vibrating screen 7 drives the screen 71 to vibrate and screen the crushed waste asphalt material, facilitating the rapid screening of fine asphalt particles and intercepted stones. At the same time, the vibration accelerates the stratification of the material, reducing the remixing or adhesion of asphalt particles with stones.

[0039] Meanwhile, during the conveying, crushing, and screening processes, the controller enables the cooling gas inside the cylinder 21 to be pumped into the rotary joint 101 through the second air inlet pipe 81, the first air outlet pipe 83, the first branch pipe 84, and the exhaust pipe 85 via the suction fan 82. The gas then enters the connecting groove 103 through the air inlet slot 102 and is discharged through the air outlet slot 104. This provides real-time cooling for the two crushing rollers 67, effectively maintaining a low-temperature environment for both the crushing rollers 67 and the material. This prevents the asphalt from melting and re-adheding due to frictional heat during crushing. Compared to existing technologies, this eliminates the need for an additional independent cooling gas source, enabling the recycling of cooling gas. It also provides more timely cooling, effectively avoiding localized overheating and ensuring continuous and efficient separation of asphalt and stones. This further improves the purity of the recycled gas and the energy efficiency of the equipment operation.

[0040] The gas discharged through the air outlet 104 then enters the ventilation sleeve 201 and is sprayed out by the second air outlet pipe 202, the second branch pipe 203, the U-shaped pipe 204, the third branch pipe 205, the jet pipe 206, and the spiral pipe 207, which facilitates the provision of a continuous cooling airflow to blow onto the vibrating screen 7, and promptly blows the asphalt dust raised during screening towards the L-shaped recovery hood 209. Compared with the existing technology, there is no need to configure a separate cooling air source for the anti-sticking component 20, realizing the reuse of cooling gas, which is more energy-efficient and the airflow temperature is stable. It can effectively prevent asphalt dust from re-adhering to stones or equipment due to temperature rise, further improving the efficiency and purity of asphalt recovery.

[0041] To address the technical problem that some asphalt remains adhering to the surface of the stones after crushing and screening, affecting the asphalt recycling effect, such as... Figures 16-19 As shown, the following preferred technical solutions are provided: like Figures 17-19As shown, the kneading and tossing assembly 30 includes a fixed housing 301 fixedly connected to one side of the vibrating screen 7. A third protective housing 302 is fixedly connected to one side of the fixed housing 301, and a third motor 303 is installed on one side of the fixed housing 301. The third protective housing 302 covers the outside of the third motor 303, providing protection and preventing dust intrusion. Simultaneously, the third motor 303 is an anti-vibration motor, facilitating stable operation in the high-frequency vibration environment of the vibrating screen 7, resisting the impact of vibration on the internal structure of the third motor 303, preventing motor failure or decreased operating accuracy due to equipment vibration, ensuring the continuity and stability of the reciprocating motion of the kneading and tossing assembly 30, and thus maintaining the continuous kneading and peeling effect on the stones. The output end of the third motor 303 is fixed... A third rotating shaft 304 is fixedly connected to one end of the third rotating shaft 304. A circular plate 305 is fixedly connected to one side of the circular plate 305. A connecting rod 306 is rotatably connected to one side of the outer edge of the circular plate 305. A push-pull rod 307 is rotatably connected to the other end of the connecting rod 306. The push-pull rod 307 is slidably connected to the fixed shell 301 and the vibrating screen 7 respectively. A triangular rod 308 is fixedly connected to one end of the push-pull rod 307. The triangular rod 308 is in contact with the screen 71. Several protrusions 309 are evenly arranged on one side of the triangular rod 308. The protrusions 309 are set on the inclined surface of the triangular rod 308, and the inclined surface is opposite to the inclined surface of the screen 71. This facilitates the upward throwing of stones, which, together with the action of the vibrating screen 7, improves the material stripping effect and makes it easier for the raised asphalt dust to be recovered by the anti-sticking component 20.

[0042] During the process of vibrating and screening the crushed waste asphalt material by the vibrating screen 7 and the screen mesh 71, the controller causes the third motor 303 to drive the third rotating shaft 304 and the circular plate 305 to rotate, which causes the connecting rod 306 to drive the push-pull rod 307 to reciprocate within the fixed shell 301, and causes the triangular rod 308 and the protrusion 309 to reciprocate on the screen mesh 71. This facilitates the active kneading and throwing of the stones that are gradually moving down on the screen mesh 71, peeling off the residual asphalt on the surface of the stones, and at the same time raising the asphalt dust for the anti-sticking component 20 to collect. Compared with the existing technology, this technology breaks through the limitation of relying solely on the vibration separation of the vibrating screen 7, and adds a deep processing step of active kneading, resulting in better peeling effect, significantly reducing the asphalt residue on the stones, and further improving the purity of asphalt recycling and the overall recycling efficiency.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asphalt recycling and crushing device, comprising a support frame (1), an upper hopper (11) is arranged in the support frame (1), characterized in that: The support frame (1) is provided with a conveying assembly (2) in the support frame (1), the conveying assembly (2) is communicated with the upper hopper (11), the conveying assembly (2) is provided with a cooling and embrittlement assembly (3) on one side, the conveying assembly (2) is provided with a detection assembly (4) on one side, the conveying assembly (2) is provided with a supporting seat (5) on one side, the supporting seat (5) is provided with a crushing assembly (6) on the top, the supporting seat (5) is provided with a vibrating screen (7) in the supporting seat (5), the vibrating screen (7) is provided with a screen (71) in the vibrating screen (7), the conveying assembly (2) is provided with a pump gas assembly (8) in communication on one side, the pump gas assembly (8) is connected with the crushing assembly (6), the conveying assembly (2) is provided with a cleaning assembly (9) in the conveying assembly (2), the crushing assembly (6) is provided with a cooling assembly (10) on one side, the cooling assembly (10) is communicated with the pump gas assembly (8), the crushing assembly (6) is rotatably provided with an anti-sticking assembly (20) on one end, the anti-sticking assembly (20) is communicated with the cooling assembly (10), the anti-sticking assembly (20) is connected with the supporting seat (5), the vibrating screen (7) is provided with a rubbing and throwing assembly (30) on one side, and the rubbing and throwing assembly (30) is attached to the vibrating screen (7).

2. An asphalt recycling and crushing apparatus according to claim 1, characterized in that: The conveying assembly (2) comprises a cylinder (21) fixedly connected in the support frame (1), the upper hopper (11) is communicated with the cylinder (21), one end of the cylinder (21) is provided with a first motor (22), the output end of the first motor (22) is fixedly connected with a first rotating shaft (23), the first rotating shaft (23) is rotatably connected with the cylinder (21), and the outer wall of the first rotating shaft (23) is fixedly connected with a spiral blade (24).

3. An asphalt recycling and breaking apparatus according to claim 2, wherein: The cooling and embrittlement assembly (3) comprises a refrigeration fan (31) installed in the support frame (1), the refrigeration fan (31) is provided with an air outlet pipe (32) communicated with the air outlet, the outer wall of the cylinder (21) is fixedly connected with a fixed sleeve (33), the outer wall of the fixed sleeve (33) is fixedly connected with a heat preservation sleeve (34), and the cooling cavity (35) is formed between the fixed sleeve (33) and the cylinder (21). The air outlet pipe (32) is fixedly connected with the heat preservation sleeve (34), and the outer wall of the heat preservation sleeve (34) is fixedly connected with a supporting rod (36).

4. An asphalt recycling and breaking apparatus according to claim 2, wherein: The detection assembly (4) comprises a temperature sensor (41) installed on the outer wall of the cylinder (21), a communication pipe (42) is communicated on one side of the cylinder (21), and one end of the communication pipe (42) is communicated with a one-way valve (43).

5. An asphalt recycling and breaking apparatus as claimed in claim 4, wherein: The crushing assembly (6) comprises a shell (61) communicated on the top of the supporting seat (5), first and second protective shells (62) and (66) are fixedly connected on the two sides of the shell (61), a second motor (63) is installed in the first protective shell (62), two second rotating shafts (64) are rotatably connected in parallel in the shell (61), the output end of the second motor (63) is fixedly connected with one of the second rotating shafts (64), one end of each of the two second rotating shafts (64) is fixedly connected with a gear (65), the two gears (65) are meshed with each other, and the outer wall of each of the two second rotating shafts (64) is fixedly connected with a crushing roller (67).

6. An asphalt recycling and breaking apparatus as claimed in claim 5, wherein: The pump air assembly (8) includes a second air inlet pipe (81) communicated with one end of the cylinder (21), a suction fan (82) is installed on one side of the second protective shell (66), the second air inlet pipe (81) is communicated with the air inlet of the suction fan (82), the air outlet of the suction fan (82) is communicated with a first air outlet pipe (83), one end of the first air outlet pipe (83) is communicated with a first branch pipe (84), and both ends of the first branch pipe (84) are communicated with exhaust pipes (85).

7. An asphalt recycling and crushing apparatus as claimed in claim 2, wherein: The cleaning assembly (9) includes a connecting ring (91) fixedly connected to the outer wall of the first rotating shaft (23), a cleaning brush (92) is fixedly connected to the outer wall of the connecting ring (91), a filter screen (93) is arranged on the inner wall of one end of the cylinder (21), and the cleaning brush (92) is attached to the filter screen (93).

8. An asphalt recycling and breaking apparatus as claimed in claim 6, wherein: The cooling assembly (10) includes two rotary joints (101) fixedly connected in the second protective shell (66), two exhaust pipes (85) are communicated with the two rotary joints (101), two second rotating shafts (64) are rotatably connected with the two rotary joints (101), one end of the two second rotating shafts (64) is provided with an air inlet groove (102), the air inlet groove (102) is communicated with the rotary joint (101), and the other end of the two second rotating shafts (64) is provided with an air outlet groove (104), a communication groove (103) is arranged in the crushing roller (67), and the air inlet groove (102) and the air outlet groove (104) are communicated with the communication groove (103).

9. An asphalt recycling and crushing apparatus as claimed in claim 5, wherein: The anti-sticking assembly (20) includes two ventilation sleeves (201) rotatably connected to the outer walls of the two second rotating shafts (64), the two ventilation sleeves (201) are fixedly connected with the shell (61), the air outlet groove (104) is communicated with the ventilation sleeve (201), one side of the two ventilation sleeves (201) is communicated with a second air outlet pipe (202), one end of the second air outlet pipe (202) is communicated with a second branch pipe (203), one side of the second branch pipe (203) is communicated with a U-shaped pipe (204), the U-shaped pipe (204) is fixedly connected with the support seat (5), one end of the U-shaped pipe (204) is communicated with a third branch pipe (205), one side of the third branch pipe (205) is uniformly communicated with a plurality of jet pipes (206), one end of the jet pipe (206) is communicated with a spiral pipe (207), a plurality of spiral grooves (208) are uniformly arranged in the spiral pipe (207), and an L-shaped recovery cover (209) is arranged in the support seat (5).

10. An asphalt recycling and crushing apparatus as claimed in claim 1, wherein: The rubbing and throwing assembly (30) comprises a fixed shell (301) fixedly connected to one side of the vibrating screen (7), one side of the fixed shell (301) is fixedly connected with a third protective shell (302), a third motor (303) is installed on one side of the fixed shell (301), the third protective shell (302) is arranged outside the third motor (303), the output end of the third motor (303) is fixedly connected with a third rotating shaft (304), one end of the third rotating shaft (304) is fixedly connected with a circular plate (305), the outer edge of one side of the circular plate (305) is rotatably connected with a connecting rod (306), the other end of the connecting rod (306) is rotatably connected with a push-pull rod (307), the push-pull rod (307) is slidably connected with the fixed shell (301) and the vibrating screen (7) respectively, one end of the push-pull rod (307) is fixedly connected with a triangular rod (308), the triangular rod (308) is attached to the screen mesh (71), and a plurality of protrusions (309) are uniformly arranged on one side of the triangular rod (308).

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