High-purity asphalt purification and extrusion equipment and method
By designing high-purity asphalt purification and extrusion equipment, and using an extrusion discharge mechanism to replace the traditional dumping method, the problem of low production efficiency caused by long as the asphalt dumping time is solved, and more efficient asphalt production is achieved.
Patent Information
- Application Number
- CN202411768370.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-02-18
AI Technical Summary
In existing asphalt production equipment, the asphalt is poured out of the heating kettle for a long time, resulting in low production efficiency.
Design a high-purity asphalt purification and extrusion equipment, including asphalt extractor, waste plastic treatment mechanism, heating mixing kettle and stirring shearing mechanism, and use an extrusion discharge mechanism to press the asphalt from the heating mixing kettle to the discharge port , alternative to traditional pouring methods.
The asphalt discharge time is significantly shortened by the extrusion discharge mechanism and the production efficiency of the asphalt is improved.
Smart Images
Figure CN119455753A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of asphalt production equipment, and in particular to a high-purity asphalt purification extrusion device and method. Background Art
[0002] At present, with the increasing application of plastic products in life, the amount of waste plastics generated has also increased. In order to improve the utilization of waste plastics, waste plastics are usually added to base asphalt as a modifier to improve the performance of asphalt and extend the service life of the road.
[0003] The base asphalt and the waste plastic modifier are added to the heating kettle, and then the base asphalt and the modifier are stirred and cut by a stirring structure so that the base asphalt and the modifier are fully fused to form asphalt. The fused asphalt is generally poured out of the heating kettle by pouring, but due to the high viscosity of the asphalt, its pouring will take a long time, resulting in reduced asphalt production efficiency. Summary of the invention
[0004] In order to improve the problem that it takes a long time to pour asphalt out of the heating kettle, resulting in low asphalt production efficiency, the present application provides a high-purity asphalt purification extrusion equipment and method.
[0005] On the one hand, the present application provides a high-purity asphalt purification extrusion equipment adopts the following technical solution: A high-purity asphalt purification extrusion device, comprising an asphalt extraction apparatus, a waste plastic processing mechanism, a heating mixing kettle and a stirring and shearing mechanism; The asphalt extractor is used to purify the base asphalt and transport it to the heating mixing kettle. The waste plastic processing mechanism is used to clean, crush and dry the waste plastic to form a modifier and transport it to the heating mixing kettle. The stirring and shearing mechanism shears and stirs the modifier and the base asphalt to form asphalt. The heating mixing kettle is provided with an extrusion discharging mechanism, and a discharging port is opened on the heating mixing kettle. The extrusion discharging mechanism is provided with a sealing plate cooperating with the discharging port. The extrusion discharging mechanism can pressurize the asphalt in the heating mixing kettle to the discharging port, and the sealing plate can cooperate with the extrusion discharging mechanism to seal or open the discharging port.
[0006] By adopting the above technical scheme, the base asphalt is transported to the asphalt extractor for purification operation to produce high-purity base asphalt, the waste plastic is cleaned, crushed and dried by the waste plastic processing mechanism to form a modifier, the purified base asphalt and the generated modifier are transported to the heating mixing kettle, and then the stirring and shearing mechanism stirs and shears the base asphalt and the modifier to form asphalt, the extrusion discharge mechanism drives the sealing plate to separate from the discharge port, and at the same time, the extruded asphalt moves toward the discharge port, and the asphalt in the heating mixing kettle is squeezed out from the discharge port. Compared with the existing dumping method, this scheme can shorten the unloading time of asphalt by extruding asphalt, thereby improving the production efficiency of asphalt.
[0007] In a specific possible implementation scheme, the stirring and shearing mechanism includes a rotating shaft, a rotating motor and a stirring and shearing blade. The rotating shaft is rotatably arranged in the heating mixing kettle. The rotating motor is used to drive the rotating shaft to rotate. The stirring and shearing blade is arranged on the rotating shaft and rotates with the rotating shaft to stir and shear the asphalt and the modifier.
[0008] By adopting the above technical solution, the rotating motor drives the rotating shaft to rotate, and the rotating shaft drives the stirring and shearing blade to rotate in the heating mixing kettle to stir and shear the modifier, so that the asphalt is mixed more evenly.
[0009] In a specific feasible implementation scheme, the extrusion discharging mechanism includes a pressing plate and a first hydraulic cylinder. The pressing plate is slidably arranged in the heating mixing kettle. A pressing rod passing through a cover plate of the heating mixing kettle is fixedly provided on the pressing plate. The pressing rod is fixedly connected to a piston rod of the first hydraulic cylinder. The first hydraulic cylinder can drive the pressing plate to extrude the asphalt toward the discharge port. A clearance hole is opened on the pressing plate for the stirring and shearing knife to pass through.
[0010] By adopting the above technical solution, when the base asphalt and the modifier are mixed, the first hydraulic cylinder drives the pressing plate to slide in the heating mixing kettle, and the pressing plate squeezes the asphalt toward the discharge port, thereby accelerating the discharge speed of the asphalt and reducing the discharge time of the asphalt.
[0011] In a specific possible implementation scheme, the stirring and shearing blades are connected by two groups of retractable rods arranged vertically; The retractable rod group includes a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the rotating shaft, and the other end is hinged to the stirring and shearing knife, the sliding sleeve on the rotating shaft is provided with a driving sleeve corresponding to the retractable rod group one by one, one end of the second connecting rod is hinged to the first connecting rod, and the other end is hinged to the driving sleeve, and the driving sleeve can drive the first connecting rod to rotate through the second connecting rod, so as to drive the stirring and shearing knife close to or away from the rotating shaft.
[0012] By adopting the above technical solution, when the asphalt mixing is completed, the drive sleeve is pulled to slide, and the drive sleeve pulls the first connecting rod to rotate through the second connecting rod. The first connecting rod drives the mixing and shearing knife to move toward the rotating axis, thereby reducing the outward extension length of the mixing and shearing knife, thereby reducing the size of the clearance hole, and making it more convenient for the pressure plate to extrude the asphalt.
[0013] In a specific possible implementation scheme, a connecting sleeve is provided on the sliding sleeve on the rotating shaft, and the connecting sleeve is fixedly connected to the two driving sleeves through an intermediate rod. A second hydraulic cylinder is provided on the heating mixing kettle, and a rotating support is fixedly provided on the piston rod of the second hydraulic cylinder. The rotating support is rotatably connected to the connecting sleeve and can drive the connecting sleeve to slide along the axial direction of the rotating shaft.
[0014] By adopting the above technical solution, when the stirring and shearing blades are retracted onto the rotating shaft, the second hydraulic cylinder drives the connecting sleeve to slide, and the connecting sleeve drives the two driving sleeves to slide through the intermediate rod, thereby improving the sliding stability of the driving sleeves; by setting the rotating support, support for the rotating shaft can be formed, thereby improving the rotation stability of the rotating shaft.
[0015] In a specific possible implementation manner, the fixed sleeve on the rotating shaft is provided with a placement cover that cooperates with the clearance hole, and the placement cover is provided with a placement groove for the stirring and shearing knife to be embedded.
[0016] By adopting the above technical solution, the placement cover can be used to reduce the gap range of the placement hole, making it easier for the pressing plate to squeeze the asphalt.
[0017] In a specific possible implementation mode, the discharge port is arranged at the bottom of the heating mixing kettle, and the blocking plate is fixedly connected to the piston rod of the first hydraulic cylinder via a support rod arranged outside the heating mixing kettle.
[0018] By adopting the above technical solution, the first hydraulic cylinder drives the blocking plate to slide through the support rod, so that the blocking plate can cooperate with the pressure plate to operate.
[0019] In a specific feasible implementation scheme, the blocking plate is opposite to the end of the rotating shaft, and a rotating support is provided on the blocking plate, whose rotation axis is colinear with the rotation axis of the rotating shaft, and an abutment end is provided on the rotating support. An abutment groove is provided at the end of the rotating shaft for the abutment end to be inserted, and the blocking plate can drive the abutment end to abut in the abutment groove.
[0020] By adopting the above technical solution, when the sealing plate seals the discharge port, the sealing plate drives the abutting end to be inserted into the abutting groove, supports the rotation of the rotating shaft, and improves the stability of the rotation of the rotating shaft.
[0021] In a specific possible implementation scheme, the rotating support includes a bearing support and a rotating body, the bearing support is fixedly arranged on the sealing plate, the abutment end is arranged on the rotating body, and the rotating body is rotatably connected to the bearing support via a rolling bearing.
[0022] By adopting the above technical solution, the rotating body is connected to the bearing support through the rolling bearing, which can reduce the friction encountered by the rotating body when it rotates.
[0023] On the other hand, the present application provides a high-purity asphalt purification extrusion method using the following technical solution: A high-purity asphalt purification extrusion method, using the high-purity asphalt purification extrusion equipment, comprises the following steps: S1. Purification of base asphalt: transport the base asphalt to an asphalt extractor for purification to produce high-purity base asphalt; Processing of waste plastics: The waste plastics are washed, crushed and dried by the waste plastics processing mechanism to form modifiers; S2, conveying the purified base asphalt and the generated modifier into a heated mixing kettle, and then the stirring and shearing mechanism stirs and shears the base asphalt and the modifier to form asphalt; S3. The extrusion discharging mechanism drives the sealing plate to separate from the discharging port, and at the same time, the asphalt is squeezed to move toward the discharging port, so that the asphalt in the heating mixing kettle is squeezed out from the discharging port.
[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The base asphalt is transported to the asphalt extractor for purification to produce high-purity base asphalt. The waste plastic is washed, crushed and dried by the waste plastic processing mechanism to form a modifier. The purified base asphalt and the generated modifier are transported to the heating mixing kettle. Then the stirring and shearing mechanism stirs and shears the base asphalt and the modifier to form asphalt. The extrusion discharge mechanism drives the sealing plate to separate from the discharge port, and at the same time, the extruded asphalt moves toward the discharge port to squeeze the asphalt in the heating mixing kettle out of the discharge port. Compared with the existing dumping method, this solution can shorten the unloading time of asphalt by extruding asphalt, thereby improving the production efficiency of asphalt; 2. When the stirring and shearing blades are retracted onto the rotating shaft, the second hydraulic cylinder drives the connecting sleeve to slide, and the connecting sleeve drives the two driving sleeves to slide through the intermediate rod, thereby improving the sliding stability of the driving sleeves; through the setting of the rotating support, support for the rotating shaft can be formed, thereby improving the rotation stability of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of a high-purity asphalt purification extrusion equipment according to an embodiment of the present application.
[0026] Figure 2 is along Figure 1 Section view along line AA.
[0027] Figure 3 is along Figure 1 Cross-sectional view along line BB.
[0028] Figure 4 It is a schematic diagram for showing the structure of placing the cover.
[0029] Figure 5 It is a schematic diagram for showing the structure of the middle rod.
[0030] Figure 6 yes Figure 2 Enlarged view of part C in the middle.
[0031] Explanation of the reference numerals in the accompanying drawings: 1. Asphalt extractor; 2. Waste plastic processing mechanism; 21. Cleaning machine tool; 22. Drying box; 23. Crusher; 3. Heating and mixing kettle; 31. Discharge port; 32. Sealing plate; 33. Support rod; 34. Rotating support; 341. Bearing support; 342. Rotating body; 35. Abutment end; 36. Abutment groove; 4. Stirring and shearing mechanism; 41. Rotating shaft; 42. Rotating motor; 43. Stirring and shearing knife; 44. Placement cover; 45. Placement groove; 46. Retraction rod group; 461. First connecting rod; 462. Second connecting rod; 47. Connecting sleeve; 481. Second hydraulic cylinder; 482. Rotating support; 483. Driving sleeve; 484. Intermediate rod; 5. Extrusion and discharging mechanism; 51. Pressing plate; 52. First hydraulic cylinder; 53. Pressing rod; 54. Make way hole. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-6 This application is described in further detail.
[0033] The embodiment of the present application discloses a high-purity asphalt purification extrusion device.
[0034] Reference Figure 1 A high-purity asphalt purification extrusion device includes an asphalt extractor 1, a waste plastic processing mechanism 2, a heating mixing kettle 3 and a stirring and shearing mechanism 4. The heating mixing kettle 3 has a built-in heating resistor wire and is heated by electric heating. The waste plastics are produced after selection, and they mainly contain polyethylene, polypropylene, ABS plastics and other components. The waste plastic processing mechanism 2 includes a cleaning machine 21, a drying box 22 and a crusher 23. The waste plastics are cleaned by the cleaning machine 21, and then enter the drying box 22 for drying, and then enter the crusher 23 to be crushed into plastic particles of the particle size required by the modifier, and then transported to the heating mixing kettle 3. The asphalt extractor 1 is used to purify the base asphalt and transport it to the heating mixing kettle 3.
[0035] The heating mixing kettle 3 in this embodiment is a cylindrical structure with a detachable end cover on the top. The agitator shearing mechanism is arranged inside the heating mixing kettle 3. The agitator shearing mechanism 4 shears and stirs the modifier and the base asphalt to form asphalt.
[0036] Reference Figure 1 , Figure 2 An extrusion discharging mechanism 5 is provided inside the heating mixing kettle 3. A discharge port 31 is provided at the bottom of the heating mixing kettle 3. The discharge port 31 is arranged at the center of the heating mixing kettle 3. A sealing plate 32 cooperating with the discharge port 31 is provided on the extrusion discharging mechanism 5. The extrusion discharging mechanism 5 can pressurize the asphalt in the heating mixing kettle 3 to the discharge port 31. The sealing plate 32 can cooperate with the extrusion discharging mechanism 5 to seal or open the discharge port 31.
[0037] The base asphalt is transported to the asphalt extractor 1 for purification operation to produce high-purity base asphalt. The waste plastic processing mechanism 2 includes a cleaning machine 21, a drying box 22 and a crusher 23. The waste plastic is cleaned by the cleaning machine 21, and then enters the drying box 22 for drying. Then, it enters the crusher 23 to be crushed into plastic particles of the particle size required by the modifier. The purified base asphalt and the generated modifier are transported to the heating mixing kettle 3, and then the stirring and shearing mechanism 4 stirs and shears the base asphalt and the modifier to form asphalt. The extrusion discharging mechanism 5 drives the sealing plate 32 to separate from the discharge port 31, and at the same time, the extruded asphalt moves toward the discharge port 31, and the asphalt in the heating mixing kettle 3 is squeezed out from the discharge port 31. Compared with the existing dumping method, this scheme can shorten the unloading time of asphalt by extruding asphalt, thereby improving the production efficiency of asphalt.
[0038] Reference Figure 1 , Figure 2 and Figure 3 The stirring and shearing mechanism 4 in this embodiment includes a rotating shaft 41, a rotating motor 42 and a stirring and shearing knife 43. The rotating motor 42 is installed on the top end cover of the heating mixing kettle 3 through a frame and is arranged downward. The rotating shaft 41 is coaxially fixedly installed on the output shaft of the rotating motor 42 and is inserted into the heating mixing kettle 3 through the end cover. The rotating motor 42 is used to drive the rotating shaft 41 to rotate. There are two stirring and shearing knives 43, which are in the shape of long strips and are arranged along the axial direction of the rotating shaft 41. The two stirring and shearing knives 43 are arranged on both sides of the rotating shaft 41. The two stirring and shearing knives 43 are provided with blades on the opposite sides of the two stirring and shearing knives 43 for shearing the modifier.
[0039] Reference Figure 1 , Figure 3 and Figure 4A placement cover 44 is fixedly sleeved on the portion of the rotating shaft 41 that is inserted into the heating mixing kettle 3. The placement cover 44 is a cylindrical structure. The placement cover 44 is provided with two placement grooves 45 that are opposite to each other along the circumferential direction. Each placement groove 45 corresponds to a stirring and shearing knife 43 one by one. Each stirring and shearing knife 43 is connected to the rotating shaft 41 through two groups of retractable rod groups 46. The two groups of retractable rod groups 46 are arranged at intervals along the axial direction of the rotating shaft 41. Each group of retractable rod groups 46 can be received into the placement groove 45 along with the stirring and shearing knife 43.
[0040] Reference Figure 3 , Figure 5 A connecting sleeve 47 is slidably sleeved on the part of the rotating shaft 41 inserted in the end cover, and the connecting sleeve 47 is rotatably sealed and connected to the end cover. Two second hydraulic cylinders 481 are fixedly provided on the heating mixing kettle 3. The two second hydraulic cylinders 481 are respectively arranged on both sides of the rotating motor 42 and are arranged downward. A rotating support 482 is commonly fixed on the piston rods of the two second hydraulic cylinders 481. The connecting sleeve 47 is connected to the rotating support 482 through a thrust ball bearing to reduce the friction between the connecting sleeve 47 and the rotating support 482. At the same time, it is ensured that the second hydraulic cylinder 481 drives the rotating support 482 to move, and drives the connecting sleeve 47 to slide on the rotating shaft 41, thereby improving the sliding stability of the connecting sleeve 47. By setting the rotating support 482, it is possible to form support for the rotating shaft 41, thereby improving the rotation stability of the rotating shaft 41.
[0041] Reference Figure 3 , Figure 5 The sliding sleeve on the rotating shaft 41 is provided with two driving sleeves 483, and the driving sleeve 483 is located in the placement cover 44. The connecting sleeve 47 and the two driving sleeves 483 are fixedly connected through an intermediate rod 484. The two intermediate rods 484 are arranged at a 90° interval along the circumference of the rotating shaft 41. The driving sleeve 483 drives the two driving sleeves 483 to slide along the axial direction of the rotating shaft 41 through the two intermediate rods 484.
[0042] Reference Figure 3 , Figure 4 and Figure 5The retracting rod group 46 in this embodiment includes a first connecting rod 461 and a second connecting rod 462. One end of the first connecting rod 461 is connected to the rotating shaft 41, and the other end is hinged to the stirring and shearing blade 43. The rotation axis of the first connecting rod 461 is perpendicular to the axis of the rotating shaft 41. One end of the second connecting rod 462 is hinged to the first connecting rod 461, and the other end is hinged to the driving sleeve 483, so that the first connecting rod 461 and the second connecting rod 462 of the same group form a triangular structure, and a parallelogram is formed between the first connecting rods 461 of the two groups of retracting rod groups 46 and the stirring and shearing blades 43. The structure ensures that when the connecting sleeve 47 drives the driving sleeve 483 to slide along the rotating shaft 41, the second connecting rod 462 pulls the first connecting rod 461 to rotate, and the stirring and shearing knife 43 is arranged along the axial direction of the rotating shaft 41, and can be rotated into or out of the placement groove 45. When the stirring and shearing knife 43 is rotated into the placement groove 45, the hinge points of the first connecting rod 461 and the second connecting rod 462, the hinge points of the first connecting rod 461 and the rotating shaft 41, and the hinge points of the second connecting rod 462 and the driving sleeve 483 are not colinear, so that the stirring and shearing knife 43 can be retracted and unfolded.
[0043] The rotating motor 42 drives the rotating shaft 41 to rotate, and the rotating shaft 41 drives the stirring and shearing blade 43 to rotate in the heating and mixing kettle 3 to stir and shear the modifier, so that the asphalt is mixed more evenly.
[0044] Reference Figure 2 The extrusion discharging mechanism 5 in this embodiment includes a pressing plate 51 and a first hydraulic cylinder 52. The pressing plate 51 is slidably arranged in the heating mixing kettle 3 and is slidably connected to the inner wall of the heating mixing kettle 3. Two pressing rods 53 passing through the cover plate of the heating mixing kettle 3 are fixedly arranged on the pressing plate 51. The two pressing rods 53 are arranged opposite to each other along the circumference of the pressing plate 51. There are two first hydraulic cylinders 52, which are fixedly arranged above the end cover of the heating mixing kettle 3. Each pressing rod 53 is fixedly connected to the piston rod of the first hydraulic cylinder 52. A clearance hole 54 for the stirring and shearing knife 43 to pass through is opened on the pressing plate 51. The aperture of the clearance hole 54 is the same as the outer diameter of the placement cover 44.
[0045] After the asphalt mixing is completed, the second hydraulic cylinder 481 drives the connecting sleeve 47 to slide, and the connecting sleeve 47 drives the two driving sleeves 483 to slide through the intermediate rod 484. The driving sleeve 483 pulls the first connecting rod 461 to rotate through the second connecting rod 462, and the first connecting rod 461 drives the mixing and shearing knife 43 to move toward the rotating shaft 41 and be stored in the placement groove 45, thereby reducing the extension length of the mixing and shearing knife 43, and then reducing the size of the clearance hole 54. By using the cooperation between the placement cover 44 and the clearance hole 54, the gap range of the clearance hole 54 can be reduced, which makes it more convenient for the pressing plate 51 to extrude and discharge asphalt.
[0046] Reference Figure 2 , Figure 6 The blocking plate 32 and the two pressure rods 53 are respectively fixedly connected through the support rods 33 arranged outside the heating mixing kettle 3. The blocking plate 32 is a circular plate matched with the discharge port 31. The blocking plate 32 is opposite to the end of the rotating shaft 41. A rotating support 34 whose rotating axis is colinear with the rotating axis of the rotating shaft 41 is provided on the blocking plate 32. The rotating support 34 includes a bearing support 341 and a rotating body 342. The bearing support 341 is fixedly arranged on the blocking plate 32 toward the rotating shaft 41. On one side, the rotating body 342 is a cylindrical structure, one end of the rotating body 342 is connected to the bearing support 341 through a rolling bearing, and the other end of the rotating body 342 forms an abutting end 35 with a pointed end. The end of the rotating shaft 41 is provided with an abutting groove 36 for the abutting end 35 to be inserted. The abutting groove 36 is a conical groove with an opening toward the abutting end 35, which improves the convenience of inserting the abutting end 35 into the abutting groove 36. When the sealing plate 32 blocks the discharge port 31, the abutting end 35 is inserted into the abutting groove 36.
[0047] When the blocking plate 32 blocks the discharge port 31, the blocking plate 32 drives the abutting end 35 to insert into the abutting groove 36, supports the rotation of the rotating shaft 41, and improves the rotation stability of the rotating shaft 41. The rotating body 342 is connected to the bearing support 341 through a rolling bearing, which can reduce the friction of the rotating body 342 when rotating.
[0048] The implementation principle of a high-purity asphalt purification extrusion equipment in an embodiment of the present application is: the base asphalt is transported to an asphalt extractor 1 for purification operation to produce high-purity base asphalt, and the waste plastic processing mechanism 2 includes a cleaning machine 21, a drying box 22 and a crusher 23. The waste plastic is cleaned by the cleaning machine 21, and then enters the drying box 22 for drying, and then enters the crusher 23 to be crushed into plastic particles of the particle size required by the modifier, and the purified base asphalt and the generated modifier are transported to the heating mixing kettle 3.
[0049] The rotating motor 42 drives the rotating shaft 41 to rotate, and the rotating shaft 41 drives the stirring and shearing knife 43 to rotate in the heating and mixing kettle 3 to stir and shear the modifier, so that the asphalt is mixed more evenly. When the asphalt is mixed, the second hydraulic cylinder 481 drives the connecting sleeve 47 to slide, and the connecting sleeve 47 drives the two driving sleeves 483 to slide through the intermediate rod 484. The driving sleeve 483 pulls the first connecting rod 461 to rotate through the second connecting rod 462. The first connecting rod 461 drives the stirring and shearing knife 43 to move toward the rotating shaft 41 and is stored in the placement groove 45. When the base asphalt and the modifier are mixed, the first hydraulic cylinder 52 drives the pressing plate 51 to slide in the heating and mixing kettle 3. At the same time, the first hydraulic cylinder 52 drives the sealing plate 32 to separate from the discharge port 31 through the support rod 33. The pressing plate 51 squeezes the asphalt toward the discharge port 31 to speed up the discharge speed of the asphalt. Compared with the existing dumping method, this scheme can shorten the unloading time of asphalt by squeezing asphalt, thereby improving the production efficiency of asphalt.
[0050] The embodiments of the present application also disclose a method for purifying and extruding high-purity asphalt.
[0051] A high-purity asphalt purification extrusion method, using the above-mentioned high-purity asphalt purification extrusion equipment, comprises the following steps: S1. Purification of base asphalt: The base asphalt is transported to the asphalt extractor 1 for purification to produce high-purity base asphalt.
[0052] Processing of waste plastics: The waste plastic processing mechanism 2 includes a cleaning machine 21, a drying box 22 and a crusher 23. The waste plastics are cleaned by the cleaning machine 21, dried in the drying box 22, and then crushed into plastic particles of the particle size required by the modifier.
[0053] S2. The purified base asphalt and the generated modifier are transported to the heating mixing kettle 3. The rotating motor 42 drives the rotating shaft 41 to rotate. The rotating shaft 41 drives the stirring and shearing blade 43 to rotate in the heating mixing kettle 3 to stir and shear the modifier, so that the asphalt is mixed more evenly.
[0054] S3. When the asphalt mixing is completed, the second hydraulic cylinder 481 drives the connecting sleeve 47 to slide, and the connecting sleeve 47 drives the two driving sleeves 483 to slide through the middle rod 484. The driving sleeve 483 pulls the first connecting rod 461 to rotate through the second connecting rod 462. The first connecting rod 461 drives the stirring shear knife 43 to move toward the rotating shaft 41 and is stored in the placement groove 45. When the base asphalt and the modifier are mixed, the first hydraulic cylinder 52 drives the pressing plate 51 to slide in the heating mixing kettle 3. At the same time, the first hydraulic cylinder 52 drives the sealing plate 32 to separate from the discharge port 31 through the support rod 33. The pressing plate 51 squeezes the asphalt toward the discharge port 31 to speed up the discharge speed of the asphalt.
[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A high-purity asphalt purification extrusion equipment, characterized in that: It comprises an asphalt extraction apparatus (1), a waste plastic processing mechanism (2), a heating and mixing kettle (3) and a stirring and shearing mechanism (4); The asphalt extractor (1) is used to purify the base asphalt and transport it to the heating mixing kettle (3); the waste plastic processing mechanism (2) is used to clean, crush and dry the waste plastic to form a modifier and transport it to the heating mixing kettle (3); the stirring and shearing mechanism (4) shears and stirs the modifier and the base asphalt to form asphalt; The heating mixing kettle (3) is provided with an extrusion discharge mechanism (5), the heating mixing kettle (3) is provided with a discharge port (31), the extrusion discharge mechanism (5) is provided with a sealing plate (32) cooperating with the discharge port (31), the extrusion discharge mechanism (5) can pressurize the asphalt in the heating mixing kettle (3) to the discharge port (31), and the sealing plate (32) can cooperate with the extrusion discharge mechanism (5) to seal or open the discharge port (31).
2. The high-purity asphalt purification extrusion equipment according to claim 1, characterized in that: The stirring and shearing mechanism (4) comprises a rotating shaft (41), a rotating motor (42) and a stirring and shearing blade (43); the rotating shaft (41) is rotatably arranged in the heating and mixing kettle (3); the rotating motor (42) is used to drive the rotating shaft (41) to rotate; the stirring and shearing blade (43) is arranged on the rotating shaft (41) and rotates with the rotating shaft (41) to stir and shear the asphalt and the modifier.
3. The high-purity asphalt purification extrusion equipment according to claim 2, characterized in that: The extrusion discharging mechanism (5) comprises a pressing plate (51) and a first hydraulic cylinder (52). The pressing plate (51) is slidably arranged in the heating mixing kettle (3). A pressing rod (53) passing through a cover plate of the heating mixing kettle (3) is fixedly arranged on the pressing plate (51). The pressing rod (53) is fixedly connected to a piston rod of the first hydraulic cylinder (52). The first hydraulic cylinder (52) can drive the pressing plate (51) to extrude asphalt toward the discharging port (31). A clearance hole (54) is provided on the pressing plate (51) for the stirring shearing knife (43) to pass through.
4. The high-purity asphalt purification extrusion equipment according to claim 3, characterized in that: The stirring and shearing blades (43) are connected via two groups of retractable rod groups (46) arranged vertically; The retracting rod group (46) includes a first connecting rod (461) and a second connecting rod (462), one end of the first connecting rod (461) is connected to the rotating shaft (41), and the other end is hinged to the stirring and shearing knife (43), a sliding sleeve on the rotating shaft (41) is provided with a driving sleeve (483) corresponding to the retracting rod group (46), one end of the second connecting rod (462) is hinged to the first connecting rod (461), and the other end is hinged to the driving sleeve (483), and the driving sleeve (483) can drive the first connecting rod (461) to rotate through the second connecting rod (462), so as to drive the stirring and shearing knife (43) to approach or move away from the rotating shaft (41).
5. The high-purity asphalt purification extrusion equipment according to claim 4, characterized in that: A connecting sleeve (47) is provided on the sliding sleeve on the rotating shaft (41), and the connecting sleeve (47) and the two driving sleeves (483) are fixedly connected via an intermediate rod (484). A second hydraulic cylinder (481) is provided on the heating mixing kettle (3), and a rotating support (482) is fixedly provided on the piston rod of the second hydraulic cylinder (481). The rotating support (482) is rotatably connected to the connecting sleeve (47) and can drive the connecting sleeve (47) to slide axially along the rotating shaft (41).
6. The high-purity asphalt purification extrusion equipment according to claim 3, characterized in that: A fixed sleeve is provided on the rotating shaft (41) with a placement cover (44) that matches the clearance hole (54), and a placement groove (45) is provided on the placement cover (44) for the stirring and shearing blade (43) to be embedded.
7. The high-purity asphalt purification extrusion equipment according to claim 3, characterized in that: The discharge port (31) is arranged at the bottom of the heating mixing kettle (3), and the blocking plate (32) and the piston rod of the first hydraulic cylinder (52) are fixedly connected via a support rod (33) arranged outside the heating mixing kettle (3).
8. The high-purity asphalt purification extrusion equipment according to claim 7, characterized in that: The blocking plate (32) is opposite to the end of the rotating shaft (41); the blocking plate (32) is provided with a rotating support (34) whose rotating axis is colinear with the rotating axis of the rotating shaft (41); the rotating support (34) is provided with an abutting end (35); the end of the rotating shaft (41) is provided with an abutting groove (36) for the abutting end (35) to be inserted; the blocking plate (32) can drive the abutting end (35) to abut in the abutting groove (36).
9. The high-purity asphalt purification extrusion equipment according to claim 8, characterized in that: The rotating support (34) comprises a bearing support (341) and a rotating body (342); the bearing support (341) is fixedly arranged on the sealing plate (32); the abutting end (35) is arranged on the rotating body (342); and the rotating body (342) is rotatably connected to the bearing support (341) via a rolling bearing.
10. A method for purifying and extruding high-purity asphalt, using a high-purity asphalt purification and extrusion device according to any one of claims 1 to 9, characterized in that: The steps include: S1. Purification of base asphalt: transporting the base asphalt to an asphalt extractor (1) for purification to produce high-purity base asphalt; Processing of waste plastics: the waste plastics are washed, crushed, and dried by a waste plastics processing mechanism (2) to form a modifier; S2, conveying the purified base asphalt and the generated modifier into a heating mixing kettle (3), and then the stirring and shearing mechanism (4) stirs and shears the base asphalt and the modifier to form asphalt; S3, the extrusion discharge mechanism (5) drives the blocking plate (32) to separate from the discharge port (31), and at the same time, extrudes the asphalt toward the discharge port (31), so that the asphalt in the heating and mixing kettle (3) is squeezed out from the discharge port (31).