Asphalt material recycling equipment with crushing and separation functions

Abstract

The present invention discloses an asphalt material recovery device with crushing and separation functions, belonging to the technical field of asphalt crushing and separation equipment. The present invention comprises a bracket, a feed hopper, an outer shell, a dust blower, a heater, and an asphalt cylinder. The feed hopper is arranged at the top of the outer shell, the dust blower is arranged at the bottom of the outer shell, the dust blower is installed on the bracket, the feed hopper, the outer shell and the dust blower are connected from top to bottom, the heater is located below the dust blower, the end of the heater away from the dust blower passes through the asphalt cylinder, a conical filter is arranged inside the asphalt cylinder, one end of the heater passing through the asphalt cylinder is connected to the conical filter, a crushing mechanism is arranged inside the outer shell, an extrusion mechanism is rotatably arranged inside the conical filter, an asphalt tube is arranged at the bottom of the asphalt cylinder, the asphalt containing stones are crushed into fine seeds by the crushing mechanism, and then the asphalt is extruded and recovered by the extrusion mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt crushing and separation equipment, in particular to asphalt material recovery equipment with crushing and separation functions. Background Art

[0002] Crushing and separation of recycled asphalt is an environmentally friendly recycling project, which means crushing old asphalt pavement or other materials containing asphalt, and then separating the asphalt from the crushed materials to recycle reusable asphalt materials. Old asphalt pavement or other materials containing asphalt usually come from road renovation, demolition projects, construction sites or other sources. The collected old asphalt materials are very hard and then need to be mechanically crushed. The crushing equipment can be a hammer crusher, jaw crusher, impact crusher, etc., which are used to crush the asphalt materials into smaller particles.

[0003] The process of heating asphalt materials, melting the asphalt and separating it is called thermal regeneration or thermal recycling. It can be used to produce new asphalt concrete, reducing the amount of new asphalt used. Other separated materials, such as stone, concrete fragments, etc., can also be processed and recycled and used as aggregates for other materials to reduce waste generation.

[0004] Crushing and separating recycled asphalt is an environmentally friendly and sustainable practice that helps reduce the demand for new asphalt, reduces resource waste, and reduces dependence on mining and new material production. This process is widely used in road construction and maintenance, engineering demolition, and recycled material production. However, the existing crushing equipment cannot achieve a completely uniform effect on the crushing of stones, which affects the asphalt heating effect and the subsequent separation effect is not ideal. Summary of the invention

[0005] The object of the present invention is to provide an asphalt recovery device with crushing and separation functions to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: the equipment includes a feed hopper, an outer shell, a dust blower, a heater, and an asphalt cylinder. The feed hopper is arranged at the top of the outer shell, the dust blower is installed on a bracket, and the dust blower is arranged at the bottom of the outer shell. The feed hopper, the outer shell and the dust blower are connected from top to bottom. The heater is located below the dust blower, and one end of the heater away from the dust blower passes through the asphalt cylinder. A conical filter is arranged inside the asphalt cylinder, and one end of the heater passing through the asphalt cylinder is connected to the conical filter. An extrusion mechanism is rotatably arranged inside the conical filter. A crushing mechanism is arranged inside the outer shell. An asphalt pipe is arranged at the bottom of the asphalt cylinder, and the asphalt pipe is connected to the inside of the asphalt cylinder. Stones containing asphalt removed from abandoned roads are transported and then put into the feed hopper by a conveyor belt. The stones containing asphalt are crushed into fine seeds by the crushing mechanism. The asphalt attached to the surface of the fine seed stone is softened after heating. The fine seed stone is then extruded by the extrusion mechanism, and the asphalt between the stones is squeezed into the asphalt cylinder, and finally flows out through the asphalt pipe for collection.

[0007] Furthermore, the outer shell is cylindrical, and the crushing mechanism includes a servo motor, a worm, and a worm wheel. The worm wheel is rotatably installed inside the outer shell, and the servo motor is installed outside the outer shell. The servo motor is connected to the control system through a circuit. The worm is installed on the servo motor. A through groove is opened on the outer shell, and the worm is meshed with the worm wheel through the through groove.

[0008] Furthermore, the crushing mechanism also includes a first crushing roller, a second crushing roller, and a power motor. A crushing groove is opened in the middle of the worm gear. The first crushing roller and the second crushing roller are rotatably installed in the crushing groove. One end of the first crushing roller and the second crushing roller are connected to a synchronous gear. The two synchronous gears are meshed with each other. The power motor is located inside the worm gear. The power motor is connected to the first crushing roller. When the stone is crushed, the power motor drives the first crushing roller to rotate. The first crushing roller and the second crushing roller are transmitted through the synchronous gear. The rotation directions of the first crushing roller and the second crushing roller are opposite. The stone is rolled between the first crushing roller and the second crushing roller. Under the extrusion of the first crushing roller and the second crushing roller, the stone is squeezed and crushed into fine pieces.

[0009] Furthermore, a grinding disc is installed at the bottom of the outer shell, and there is a gap between the grinding disc and the first crushing roller and the second crushing roller. While the first crushing roller and the second crushing roller squeeze and destroy the stone, the control system energizes the servo motor to drive the worm to rotate, and the worm drives the worm wheel to rotate. The stone broken into fine pieces falls onto the grinding disc, and the rotation of the worm wheel drives the first crushing roller and the second crushing roller to crush and grind the fine pieces of stone on the grinding disc again. The crushed stone moves from the middle to the edge of the grinding disc. Through two consecutive crushing operations, the stone is crushed evenly and finely, eliminating the screening process, and the finely crushed seed material is easier to heat evenly.

[0010] Furthermore, the dust blowing cylinder is provided with an ash discharge slot, a row of the ash discharge slots is opened from top to bottom, a cloth bag is arranged at the position of the outside of the dust blowing cylinder corresponding to the ash discharge slot, a plurality of air outlet holes are opened from top to bottom on one side of the dust blowing cylinder corresponding to the ash discharge slot, a dust suction ring pipe is installed above the feed hopper, a plurality of air suction holes are opened on the inner circle of the dust suction ring pipe, the dust suction ring pipe is connected to an air pump through a pipeline, the air outlet end of the air pump is connected to the air outlet holes through a plurality of air outlet pipes, the air pump is powered on to work when crushing stones, the dust suction ring pipe is connected to the air suction end of the air pump, and a large amount of smoke and dust generated during the crushing process is diffused outward from the feed hopper The smoke and dust are dispersed, and the smoke and dust are sucked into the dust suction ring pipe through the suction hole to prevent the dust from spreading and polluting the workplace. The stone crushed into fine seeds falls downward in the dust blowing tube, and the gas blown out of the exhaust pipe carries the dust absorbed from the inlet hopper. At the same time, the dust in the fine seed stone is also blown to the ash outlet trough to clean the dust on the stone, preventing a large amount of dust from being mixed into the asphalt during the subsequent heating process, thereby preventing the recycled asphalt from having a large impurity content. The dust blown into the ash outlet trough is blocked by the cloth bag and finally accumulated in the cloth bag. The operator cleans the dust in the cloth bag at regular intervals to ensure the normal use of the equipment.

[0011] Furthermore, an electric heating wire is provided in the inner wall of the heater, a first screw is rotatably installed inside the heater, a first motor is installed outside the heater, the first motor is connected to the first screw, and the first motor is connected to the control system circuit. The dried and hardened asphalt is attached to the stone after the dust is removed. These fine seed materials fall into the heater after passing through the dust blower. The first motor is energized to drive the first screw to rotate. The first screw pushes the fine seed stone into the asphalt cylinder during the rotation. During the pushing process, the fine seed stone is stirred to contact with the heater. The electric heating wire in the heater heats the fine seed stone, so that the asphalt is melted by the heat. The melted asphalt is still attached to the stone particles. The first screw heats the asphalt and the stone particles while moving. The asphalt and the stone particles are finally squeezed into the conical filter.

[0012] Furthermore, the extrusion mechanism includes a variable diameter screw, which is vertically arranged, the bottom diameter of the variable diameter screw is larger than the top diameter, the pitch of the variable diameter screw gradually decreases from bottom to top, and the change pattern of the outer contour of the variable diameter screw is the same as the internal contour of the conical filter.

[0013] Furthermore, the top of the asphalt cylinder is dome-shaped, and the top of the conical filter passes through the top of the asphalt cylinder. A second motor is installed on the top of the asphalt cylinder, and the second motor is connected to the variable diameter screw. The second motor is energized to drive the variable diameter screw to rotate, and the asphalt and stone particles entering the conical filter are squeezed and transported upward by the variable diameter screw. During the upward transmission process, the closing part of the conical filter becomes narrower and narrower, and the spacing between the two layers of blades of the variable diameter screw becomes narrower and narrower. The narrow space squeezes the asphalt and stone particles, and the molten asphalt can pass through the size of the gap of the conical filter, while the stone particles are retained by the conical filter. Finally, the asphalt flows down along the conical filter into the asphalt cylinder, and finally the asphalt flows out through the asphalt pipe for recycling, and the stone particles continue to move upward driven by the variable diameter screw until they emerge from the top of the conical filter to the asphalt cylinder.

[0014] Furthermore, a receiving tray is provided in the middle of the asphalt cylinder. The receiving tray is inclined, and a baffle is provided around the receiving tray. A notch is formed on the lower end of the baffle corresponding to the receiving tray. As more and more stones emerge onto the asphalt cylinder, the stones slide from the top of the asphalt cylinder to the receiving tray. The stones eventually slide out along the inclination direction of the receiving tray, so that the stones are accumulated on one side of the asphalt cylinder, thereby realizing the crushing and separation of asphalt and stone.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. The first crushing roller and the second crushing roller rotate in opposite directions. The stone is rolled between the first crushing roller and the second crushing roller. Under the extrusion of the first crushing roller and the second crushing roller, the stone is crushed into fine pieces. The fine pieces of stone fall onto the grinding disc. When the worm gear rotates, it drives the first crushing roller and the second crushing roller to crush the fine pieces of stone on the grinding disc again. The crushed stone moves from the middle to the edge of the grinding disc. Through two consecutive crushing operations, the stone is crushed evenly and finely, eliminating the screening process. The finely crushed seed material is easier to heat evenly.

[0017] 2. During the crushing process, a large amount of smoke and dust is generated and diffused outward from the feed hopper. The smoke and dust are sucked into the dust suction ring through the suction hole to prevent the dust from spreading and polluting the workplace. The dust absorbed at the feed hopper and the dust in the fine seed stone are also blown to the ash outlet trough to clean the dust on the stone, preventing a large amount of dust from being mixed into the asphalt during the subsequent heating process, thereby preventing the recycled asphalt from having a large amount of impurities.

[0018] 3. By setting a variable diameter screw, the asphalt and stone particles entering the conical filter are squeezed and transported upward by the variable diameter screw. During the upward transmission process, the conical filter opening becomes narrower and narrower, and the distance between the two layers of blades of the variable diameter screw becomes narrower and narrower. The narrow space squeezes the asphalt and stone particles. The molten asphalt can pass through the gap of the conical filter, while the stone particles are retained by the conical filter. Finally, the asphalt flows down along the conical filter into the asphalt cylinder, and finally the asphalt flows out through the asphalt pipe for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall appearance structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the overall internal structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall internal structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the outer shell of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of the outer shell of the present invention;

[0026] In the figure: 1. hopper; 2. outer shell; 3. dust blower; 4. heater; 5. dust suction ring; 6. air pump; 7. air outlet pipe; 8. servo motor; 9. worm; 10. worm gear; 11. first crushing roller; 12. second crushing roller; 13. synchronous gear; 14. grinding disc; 15. first motor; 16. first screw; 17. asphalt cylinder; 18. conical filter; 19. receiving tray; 20. variable diameter screw; 21. asphalt pipe; 22. second motor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 6The present invention provides a technical solution: the equipment includes a feed hopper 1, an outer shell 2, a dust blowing cylinder 3, a heater 4, and an asphalt cylinder 17. The feed hopper 1 is arranged on the top of the outer shell 2, the dust blowing cylinder 3 is installed on a bracket, and the dust blowing cylinder 3 is arranged at the bottom of the outer shell 2. The feed hopper 1, the outer shell 2 and the dust blowing cylinder 3 are connected from top to bottom. The heater 4 is located below the dust blowing cylinder 3, and one end of the heater 4 away from the dust blowing cylinder 3 passes through the asphalt cylinder 17. A conical filter screen 18 is arranged inside the asphalt cylinder 17. One end of the heater 4 passing through the asphalt cylinder 17 is connected to the conical filter screen 18. An extrusion mechanism is rotatably arranged inside the conical filter 18, a crushing mechanism is arranged inside the outer shell 2, an asphalt pipe 21 is arranged at the bottom of the asphalt cylinder 17, and the asphalt pipe 21 is connected with the inside of the asphalt cylinder 17. The stones containing asphalt removed from the abandoned road are transported and then put into the hopper 1 by the conveyor belt. The stones containing asphalt are crushed into fine seeds by the crushing mechanism. The asphalt attached to the surface of the fine seed stone is softened after heating, and the fine seed stone is then squeezed by the extrusion mechanism, and the asphalt between the stones is squeezed into the asphalt cylinder 17, and finally flows out through the asphalt pipe 21 for collection.

[0029] The outer shell 2 is cylindrical, and the crushing mechanism includes a servo motor 8, a worm 9, and a worm wheel 10. The worm wheel 10 is rotatably installed inside the outer shell 2, and the servo motor 8 is installed outside the outer shell 2. The servo motor 8 is connected to the control system through a circuit, and the worm 9 is installed on the servo motor 8. A through groove is provided on the outer shell 2, and the worm 9 is meshed with the worm wheel 10 through the through groove. The crushing mechanism also includes a first crushing roller 11, a second crushing roller 12, and a power motor. A crushing groove is provided in the middle of the worm wheel 10, and the first crushing roller 11 and the second crushing roller 12 are rotatably installed in the crushing groove. One end of the first crushing roller 11 and the second crushing roller 12 are connected to a synchronous gear 13, and the two synchronous gears 13 are meshed with each other. The power motor is located inside the worm wheel 10, and the power motor is connected to the first crushing roller 11. A grinding disc 14 is installed at the bottom of the outer shell 2, and there is a gap between the grinding disc 14 and the first crushing roller 11 and the second crushing roller 12. When the stone is crushed During crushing, the power motor drives the first crushing roller 11 to rotate, and the first crushing roller 11 and the second crushing roller 12 are driven by the synchronous gear 13. The rotation directions of the first crushing roller 11 and the second crushing roller 12 are opposite, and the stone is rolled between the first crushing roller 11 and the second crushing roller 12. Under the extrusion of the first crushing roller 11 and the second crushing roller 12, the stone is squeezed and crushed into fine pieces. While the first crushing roller 11 and the second crushing roller 12 squeeze and destroy the stone, the control system enables the servo motor 8 to be energized to drive the worm 9 to rotate, and the worm 9 drives the worm wheel 10 to rotate, and the broken stone falls onto the grinding disc 14. When the worm wheel 10 rotates, it drives the first crushing roller 11 and the second crushing roller 12 to crush and grind the fine stone again on the grinding disc 14. The crushed stone moves from the middle to the edge of the grinding disc 14. Through two consecutive crushing, it is ensured that the stone is crushed evenly and finely, eliminating the screening process, and the finely crushed seed material is more convenient to heat evenly.

[0030] A dust discharge slot is provided on the dust blowing cylinder 3, and the dust discharge slot is provided from top to bottom. A cloth bag (not shown in the figure) is provided at the position of the dust discharge slot on the outside of the dust blowing cylinder 3. A plurality of air outlet holes are provided on one side of the dust blowing cylinder 3 corresponding to the ash discharge slot from top to bottom. A dust suction ring pipe 5 is installed above the feed hopper 1. A plurality of air suction holes are provided in the inner circle of the dust suction ring pipe 5. The dust suction ring pipe 5 is connected to an air pump 6 through a pipeline. The air outlet end of the air pump 6 is connected to the air outlet holes through a plurality of air outlet pipes 7. The air pump 6 is powered on when crushing stones. The dust suction ring pipe 5 is connected to the air suction end of the air pump 6. A large amount of smoke and dust is generated during the crushing process and diffused outward from the feed hopper 1. The smoke and dust are sucked into the dust suction ring pipe 5 through the suction hole to prevent the dust from spreading and polluting the workplace. The stone crushed into fine seeds falls downward in the dust blowing tube 3. The gas blown out of the air outlet pipe 7 carries the dust absorbed from the inlet hopper 1. At the same time, the dust in the fine seed stone is also blown to the ash outlet trough to clean the dust on the stone, preventing a large amount of dust from being mixed into the asphalt during the subsequent heating process, thereby preventing the recovered asphalt from having a large impurity content. The dust blown into the ash outlet trough is blocked by the cloth bag and finally accumulates in the cloth bag. The operator cleans the dust in the cloth bag at regular intervals to ensure the normal use of the equipment.

[0031] An electric heating wire is provided in the inner wall of the heater 4, and a first screw 16 is rotatably installed inside the heater 4. A first motor 15 is installed outside the heater 4, and the first motor 15 is connected to the first screw 16. The first motor 15 is connected to the control system circuit. The dried and hardened asphalt is attached to the stone after the dust is removed. These fine seed materials fall into the heater 4 after passing through the dust blowing cylinder 3. The first motor 15 is energized to drive the first screw 16 to rotate. The first screw 16 pushes the fine seed stone into the asphalt cylinder 17 during the rotation. During the pushing process, the fine seed stone is stirred to contact with the heater 4. The electric heating wire in the heater 4 heats the fine seed stone, so that the asphalt is heated and melted. The melted asphalt is still attached to the stone particles. The first screw 16 heats the asphalt and the stone particles while moving. The asphalt and the stone particles are finally squeezed into the conical filter 18.

[0032] The extrusion mechanism includes a variable diameter screw 20, which is vertically arranged. The bottom diameter of the variable diameter screw 20 is larger than the top diameter. The pitch of the variable diameter screw 20 gradually decreases from bottom to top. The change rule of the outer contour of the variable diameter screw 20 is the same as the internal contour of the conical filter 18. The top of the asphalt cylinder 17 is dome-shaped. The top of the conical filter 18 penetrates the top of the asphalt cylinder 17. A second motor 22 is installed on the top of the asphalt cylinder 17. The second motor 22 is connected to the variable diameter screw 20. A receiving tray 19 is arranged in the middle of the asphalt cylinder 17. The receiving tray 19 is inclined. A baffle is arranged around the receiving tray 19. A notch is opened at the lower end of the baffle corresponding to the receiving tray 19. The second motor 22 is energized to drive the variable diameter screw 20 to rotate, and the asphalt and stone particles entering the conical filter 18 are squeezed and transmitted upward by the variable diameter screw 20. During the upward transmission process, the closing part of the conical filter 18 becomes narrower and narrower, and the spacing between the two layers of blades of the variable diameter screw 20 becomes narrower and narrower. The narrow space squeezes the asphalt and the stone particles. The molten asphalt can pass through the gap of the conical filter 18, while the stone particles are retained by the conical filter 18. Finally, the asphalt flows downward along the conical filter 18 into the asphalt cylinder 17, and finally the asphalt flows out through the asphalt pipe 21 for recycling. The stone particles continue to move upward driven by the variable diameter screw 20 until they emerge from the top of the conical filter 18 onto the asphalt cylinder 17. As the number of stone particles emerging onto the asphalt cylinder 17 increases, the stone particles slide from the top of the asphalt cylinder 17 to the receiving tray 19, and the stone particles finally slide out along the inclination direction of the receiving tray 19, so that the stone particles accumulate on one side of the asphalt cylinder 17, thereby realizing the crushing and separation of asphalt and stone.

[0033] The working principle of the present invention is as follows: before using the crushing and separation equipment of the present invention to separate asphalt, the stones containing asphalt removed from the abandoned road are transported and then put into the feed hopper 1 by the conveyor belt. The stones containing asphalt are crushed into fine seeds by the crushing mechanism. The asphalt attached to the surface of the fine seed stone is softened after heating. The fine seed stone is then squeezed by the extrusion mechanism, and the asphalt between the stones is squeezed into the asphalt cylinder 17, and finally flows out through the asphalt pipe 21 for collection.

[0034] When the stone is crushed, the power motor drives the first crushing roller 11 to rotate, and the first crushing roller 11 and the second crushing roller 12 are transmitted through the synchronous gear 13. The rotation directions of the first crushing roller 11 and the second crushing roller 12 are opposite, and the stone is rolled between the first crushing roller 11 and the second crushing roller 12. Under the extrusion of the first crushing roller 11 and the second crushing roller 12, the stone is squeezed and crushed into fine pieces. While the first crushing roller 11 and the second crushing roller 12 squeeze and destroy the stone, the control system enables the servo motor 8 to be energized to drive the worm 9 to rotate, and the worm 9 drives the worm wheel 10 to rotate, and the broken stone falls onto the grinding disc 14. When the worm wheel 10 rotates, it drives the first crushing roller 11 and the second crushing roller 12 to crush and grind the fine stone again on the grinding disc 14. The crushed stone moves from the middle to the edge of the grinding disc 14. Through two consecutive crushing, it is ensured that the stone is crushed evenly and finely, eliminating the screening process, and the finely crushed seed material is more convenient to heat evenly.

[0035] The air pump 6 is powered on to work when crushing stones, and the dust suction ring pipe 5 is connected to the exhaust end of the air pump 6. A large amount of smoke and dust is generated in the crushing process and diffuses outward from the feed hopper 1. The smoke and dust are sucked into the dust suction ring pipe 5 through the suction hole to prevent the dust from spreading and polluting the workplace. The stones crushed into fine seeds fall downward in the dust blowing cylinder 3, and the gas blown out from the air outlet pipe 7 carries the dust absorbed from the feed hopper 1. At the same time, the dust in the fine seed stones is also blown to the ash outlet trough to clean the dust on the stones, preventing a large amount of dust from being mixed into the asphalt during the subsequent heating process, thereby preventing the recovered asphalt from having a large impurity content. The dust blown into the ash outlet trough is blocked by the cloth bag and eventually accumulates in the cloth bag. The operator cleans the dust in the cloth bag at regular intervals to ensure the normal use of the equipment.

[0036] The dried and hardened asphalt is attached to the stones after the dust is removed. These fine seed materials fall into the heater 4 after passing through the dust blowing tube 3. The first motor 15 is energized to drive the first screw 16 to rotate. The first screw 16 pushes the fine seed stones into the asphalt tube 17 during the rotation. During the pushing process, the fine seed stones are stirred to make them contact with the heater 4. The electric heating wire in the heater 4 heats the fine seed stones, so that the asphalt is melted by the heat. The melted asphalt is still attached to the stone particles. The first screw 16 heats the asphalt and the stone particles while moving. The asphalt and the stone particles are finally squeezed into the conical filter 18.

[0037] The second motor 22 is energized to drive the variable diameter screw 20 to rotate, and the asphalt and stone particles entering the conical filter 18 are squeezed and transported upward by the variable diameter screw 20. During the upward transmission process, the conical filter 18 becomes narrower and narrower, and the spacing between the two layers of blades of the variable diameter screw 20 becomes narrower and narrower. The narrow space squeezes the asphalt and the stone particles, and the molten asphalt can pass through the size of the gap in the conical filter 18, while the stone particles are retained by the conical filter 18. Finally, the asphalt flows downward along the conical filter 18 into the asphalt cylinder 17, and finally the asphalt flows out through the asphalt pipe 21 for recycling. The stone particles continue to move upward driven by the variable diameter screw 20 until they emerge from the top of the conical filter 18 onto the asphalt cylinder 17. As the number of stone particles emerging onto the asphalt cylinder 17 increases, the stone particles slide from the top of the asphalt cylinder 17 to the receiving tray 19, and the stone particles finally slide out along the inclination direction of the receiving tray 19, so that the stone particles are accumulated on one side of the asphalt cylinder 17, thereby achieving the crushing and separation of asphalt and stone.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An asphalt material recovery device with crushing and separation functions, comprising a bracket, characterized in that: The device comprises a feed hopper (1), an outer shell (2), a dust blowing cylinder (3), a heater (4), and an asphalt cylinder (17); the feed hopper (1) is arranged at the top of the outer shell (2); the dust blowing cylinder (3) is installed on a bracket; the dust blowing cylinder (3) is arranged at the bottom of the outer shell (2); the feed hopper (1), the outer shell (2) and the dust blowing cylinder (3) are connected vertically; the heater (4) is located below the dust blowing cylinder (3); one end of the heater (4) away from the dust blowing cylinder (3) passes through the asphalt cylinder (17); a conical filter screen (18) is arranged inside the asphalt cylinder (17); one end of the heater (4) passing through the asphalt cylinder (17) is connected to the conical filter screen (18); an extrusion mechanism is rotatably arranged inside the conical filter screen (18); and a crushing mechanism is arranged inside the outer shell (2); An asphalt pipe (21) is arranged at the bottom of the asphalt cylinder (17), and the asphalt pipe (21) is connected to the interior of the asphalt cylinder (17). A material receiving tray (19) is arranged in the middle of the asphalt cylinder (17). The material receiving tray (19) is arranged at an angle, and a baffle is arranged around the material receiving tray (19). A notch is provided at the lower end of the baffle corresponding to the material receiving tray (19); The extrusion mechanism comprises a variable diameter screw (20), the variable diameter screw (20) is arranged vertically, the bottom diameter of the variable diameter screw (20) is larger than the top diameter, the pitch of the variable diameter screw (20) gradually decreases from bottom to top, and the change pattern of the outer contour of the variable diameter screw (20) is the same as the inner contour of the conical filter (18); The dust blowing cylinder (3) is provided with an ash discharge slot, a row of the ash discharge slots is provided from top to bottom, a cloth bag is provided at a position corresponding to the ash discharge slot on the outside of the dust blowing cylinder (3), a plurality of air outlet holes are provided from top to bottom on one side of the dust blowing cylinder (3) corresponding to the ash discharge slot, a dust suction ring pipe (5) is installed above the feed hopper (1), a plurality of air suction holes are provided on the inner ring of the dust suction ring pipe (5), the dust suction ring pipe (5) is connected to an air pump (6) via a pipeline, and an air outlet end of the air pump (6) is connected to the air outlet hole via a plurality of air outlet pipes (7).

2. The asphalt recovery equipment with crushing and separation functions according to claim 1 is characterized in that: The outer shell (2) is cylindrical, and the crushing mechanism comprises a servo motor (8), a worm (9), and a worm wheel (10). The worm wheel (10) is rotatably mounted inside the outer shell (2), and the servo motor (8) is mounted outside the outer shell (2). The servo motor (8) is connected to a control system via a circuit, and the worm (9) is mounted on the servo motor (8). A through slot is provided on the outer shell (2), and the worm (9) meshes with the worm wheel (10) via the through slot.

3. The asphalt recovery equipment with crushing and separation functions according to claim 2 is characterized in that: The crushing mechanism further comprises a first crushing roller (11), a second crushing roller (12), and a power motor. A crushing groove is provided in the middle of the worm gear (10). The first crushing roller (11) and the second crushing roller (12) are rotatably mounted in the crushing groove. One end of each of the first crushing roller (11) and the second crushing roller (12) is connected to a synchronous gear (13). The two synchronous gears (13) are meshed with each other. The power motor is located inside the worm gear (10) and is connected to the first crushing roller (11).

4. The asphalt recovery equipment with crushing and separation functions according to claim 3 is characterized in that: A grinding disc (14) is installed at the bottom of the outer shell (2), and a gap exists between the grinding disc (14) and the first crushing roller (11) and the second crushing roller (12).

5. The asphalt recovery equipment with crushing and separation functions according to claim 1 is characterized in that: An electric heating wire is arranged in the inner wall of the heater (4); a first screw rod (16) is rotatably mounted inside the heater (4); a first motor (15) is mounted outside the heater (4); the first motor (15) is connected to the first screw rod (16); and the first motor (15) is connected to a control system circuit.

6. The asphalt recovery equipment with crushing and separation functions according to claim 1 is characterized in that: The top of the asphalt cylinder (17) is dome-shaped, the top of the conical filter (18) passes through the top of the asphalt cylinder (17), and a second motor (22) is installed on the top of the asphalt cylinder (17), and the second motor (22) is connected to the variable diameter screw (20).

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