An asphalt mixture regeneration device based on microwave heating technology

Abstract

The present invention relates to an asphalt mixture regeneration device based on microwave heating technology, comprising a separation box, a box cover arranged at the top of the separation box, a microwave generator arranged at the bottom of the separation box, and a support frame arranged at the bottom of the separation box. A filter screen is fixedly arranged in the separation box, and the filter screen is cylindrical. A drive assembly is provided on the separation box, and two groups of separation assemblies are provided on the drive assembly. A guide assembly is provided above the separation assembly, and a blowing assembly is provided below the separation assembly. The present invention adopts microwave heating technology to heat the asphalt mixture, and separates the asphalt and aggregate through the filter screen and the separation assembly in cooperation with the guide assembly and the blowing assembly, thereby improving the separation efficiency and the recycling rate.

Description

Technical Field

[0001] The present invention relates to the technical field of waste asphalt mixture regeneration, and more particularly to an asphalt mixture regeneration device based on microwave heating technology. Background Art

[0002] Asphalt mixture regeneration technology is to mix old asphalt with some new aggregate and new asphalt in appropriate amounts, and remix them into a recycled asphalt mixture under the action of regeneration agents and other admixtures. The existing separation of asphalt and aggregate usually uses a heating furnace to heat the asphalt mixture. The asphalt mixture is in a static state in the heating furnace, and the asphalt mixture is heated unevenly, resulting in poor separation of asphalt and aggregate. Therefore, an asphalt mixture regeneration device with good asphalt and aggregate separation effect is crucial.

[0003] At present, there is a Chinese patent with publication number CN111364319A, which discloses a vibrating centrifugal asphalt aggregate regeneration device and method based on microwave technology, including a box cover, a smooth plate on the bottom of the box and a support frame fixed at the lower part of the box body, the support frame is placed in a smooth rectangular sliding groove, a cylindrical filter screen is arranged in the box body, a rotating shaft, a multi-stage aggregate screen connected to the rotating shaft and a smooth plate are provided in the filter screen, the aggregate screens and the smooth plates are connected by different pillars, microwave sensors are installed at the bottom of the rotating shaft and the bottom of the support frame, cylindrical thin tubes are distributed between the side wall of the box body and the filter screen, and an outlet is provided on the side wall of the bottom of the box body, but it only separates the waste asphalt by the centrifugal force generated by a single rotating multi-stage aggregate screen, there is a problem of incomplete separation, which reduces the recovery rate and recycling rate of the waste asphalt, and the separation efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to address the shortcomings of the existing technology and provide an asphalt mixture regeneration device based on microwave heating technology. The device uses microwave heating technology to heat the asphalt mixture, and separates the asphalt and aggregate through a filter screen and a separation component in cooperation with a guide component and a blowing component, thereby improving the separation efficiency and the recycling rate.

[0005] The technical solutions of the present invention are as follows:

[0006] An asphalt mixture regeneration device based on microwave heating technology includes a separation box, a box cover arranged at the top of the separation box, a microwave generator arranged at the bottom of the separation box, and a support frame arranged at the bottom of the separation box. A filter screen is fixedly arranged in the separation box, and the filter screen is cylindrical. A drive assembly is provided on the separation box, and two groups of separation assemblies are provided on the drive assembly. A guide assembly is provided above the separation assembly, and a blowing assembly is provided below the separation assembly. The microwave generator is used to heat the asphalt mixture in the separation box, the guide assembly is used to disperse the asphalt mixture on the separation assembly, the drive assembly is used to drive the separation assembly to rotate and separate the asphalt and aggregate with the cooperation of the filter screen, and the blowing assembly is used to speed up the separation speed between the asphalt and the aggregate.

[0007] As a preference, the drive assembly includes a motor fixedly mounted on the support frame, a first synchronous wheel fixedly connected to the output shaft of the motor, a rotating shaft rotatably mounted in the separation box, and a second synchronous wheel fixedly mounted on the rotating shaft. The first synchronous wheel and the second synchronous wheel are connected via a first synchronous belt transmission, and the rotating shaft is a hollow structure.

[0008] As a preference, the separation assembly includes a sieve plate fixedly arranged on the rotating shaft and sieve holes opened on the sieve plate, the aperture of the sieve holes on the sieve plate located above the rotating shaft is larger than the aperture of the sieve holes on the sieve plate located below the rotating shaft, and the two sieve plates are distributed in a linear array.

[0009] As a preferred embodiment, the guide assembly includes a dispersion plate fixedly arranged in the filter screen by a support rod, a drop-out port opened in the middle of the dispersion plate, an air blowing hole opened at the bottom of the dispersion plate, a plurality of first hollow rods fixedly arranged in the middle of the dispersion plate, a first fixing ring fixedly arranged at the end of the first hollow rod, and a guide plate fixedly arranged on one side of the dispersion plate, the first fixing ring is sleeved on the rotating shaft, the top of the dispersion plate is a slope structure, the dispersion plate and the guide plate are both hollow structures, and the interior of the first fixing ring is connected to the interior of the rotating shaft.

[0010] As a preference, the blowing assembly includes a fixed seat fixedly arranged on the inner wall of the filter screen, a plurality of first blowing nozzles fixedly arranged on the fixed seat, a second hollow rod fixedly arranged on the fixed seat, and a second fixing ring fixedly arranged on the second hollow rod, the second fixing ring is sleeved on the rotating shaft, and the interior of the second fixing ring is connected to the interior of the rotating shaft.

[0011] As a preference, a discharge plate is fixedly provided at the bottom of the separation box, the discharge plate is tilted in the separation box, the top of the filter screen is fixedly connected to the top of the inner wall of the separation box, and its bottom is fixedly connected to the top of the discharge plate through a fixing rod.

[0012] As a preference, an asphalt outlet is provided on one side of the separation box, a filter plate is provided at the asphalt outlet, and the asphalt outlet corresponds to the discharge plate.

[0013] As a preference, two aggregate outlets are provided on the side wall of the separation box, an aggregate discharge pipe is fixedly connected between the aggregate outlet and the outer side wall of the filter screen, the aggregate discharge pipe corresponds to the guide plate, and the two aggregate outlets are distributed in a linear array.

[0014] As a preferred embodiment, a fixed sleeve is fixedly provided on the support frame, the fixed sleeve is arranged on the rotating shaft, an air pump is fixedly provided on the support frame, an air pipe is fixedly connected between the output end of the air pump and the fixed sleeve, and the interior of the fixed sleeve is connected to the interior of the rotating shaft.

[0015] As another preferred embodiment, a plurality of second blowing nozzles are fixedly provided on the guide plate.

[0016] The beneficial effects of the present invention are:

[0017] The present invention is provided with a microwave generator, a filter, a drive assembly and a separation assembly. The asphalt mixture is put into the separation box, and the asphalt mixture falls on the screening plate. The separation box is heated by the microwave generator, so that the asphalt gradually changes from solid to liquid during the heating process. When the temperature reaches the set temperature, the motor starts to drive the rotating shaft to rotate, so that the rotating shaft drives the screening plate to rotate. Under the action of centrifugal force, the asphalt and aggregate are separated, and the asphalt passes through the filter and is thrown onto the inner wall of the separation box. Due to the asphalt's own gravity, it can fall on the discharge plate, thereby achieving the effect of separating the asphalt and aggregate. The asphalt mixture is driven to rotate by the screening plate, so that the asphalt mixture is heated evenly and the separation effect is good. In addition, by setting two screening plates with different apertures to perform primary screening and secondary screening on the aggregate, it is avoided that the asphalt still contains aggregate when the asphalt is collected, which affects the asphalt recovery rate.

[0018] The present invention is also provided with a guide assembly and a blowing assembly. When the asphalt mixture is located on the screening plate, the asphalt mixture can be spread flat on the screening plate under the action of the dispersion plate, so that the asphalt mixture is heated more evenly and the separation effect of asphalt and aggregate is better. The air pump is started to transport gas into the rotating shaft, so that the blowing holes blow air into the asphalt mixture, blowing the asphalt away from the aggregate. The asphalt passes through the screening plate and falls onto the discharge plate, thereby increasing the speed of separation of asphalt and aggregate and improving the separation efficiency.

[0019] The present invention is also provided with an air blowing assembly. When the screening plate drives the asphalt mixture to rotate above the first air blowing nozzle, the first air blowing nozzle blows air upward toward the asphalt mixture on the screening plate, so that the asphalt mixture is spread flat on the inner wall of the filter along the guide plate. Then, the second air blowing nozzle blows air toward the asphalt mixture to blow the asphalt on the aggregate toward the inner wall of the separation box. The aggregate enters the aggregate discharge pipe and is discharged from the aggregate outlet under the blowing of the second air blowing nozzle and the guiding action of the guide plate. This method enables the asphalt to be quickly separated from the aggregate, further improving the separation efficiency.

[0020] In summary, the present invention has the advantages of good asphalt and aggregate separation effect and high separation efficiency, and is suitable for the technical field of waste asphalt mixture regeneration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the asphalt mixture regeneration device based on microwave heating technology;

[0023] Figure 2 It is a schematic diagram of the structure of the separation component, the guide component and the blowing component;

[0024] Figure 3 Schematic diagram of the internal structure of the separation box;

[0025] Figure 4 for Figure 3 A magnified schematic diagram of point A;

[0026] Figure 5 This is a schematic diagram of the state of asphalt being discharged from the asphalt outlet after separation;

[0027] Figure 6 This is a schematic diagram of the state of aggregate being discharged from the aggregate outlet after separation.

[0028] Figure markings: 1-separation box; 11-box cover; 12-support frame; 13-asphalt outlet; 14-filter plate; 15-aggregate outlet; 16-aggregate discharge pipe; 17-fixing sleeve; 2-microwave generator; 3-filter screen; 31-fixing rod; 4-driving assembly; 41-motor; 42-first synchronous wheel; 43-rotating shaft; 44-second synchronous wheel; 45-synchronous belt; 5-separation assembly; 51-screening plate; 52-screening hole; 6-guide assembly; 61-support rod; 62-dispersion plate; 63-feeding port; 64-blowing hole; 65-first air rod; 66-first fixing ring; 67-guide plate; 68-second blowing nozzle; 7-blowing assembly; 71-fixing seat; 72-first blowing nozzle; 73-second hollow rod; 74-second fixing ring; 8-discharging plate; 9-air pump; 91-air pipe. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings. Example 1

[0030] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0031] like Figures 1 to 6 As shown, an asphalt mixture regeneration device based on microwave heating technology includes a separation box 1, a box cover 11 arranged at the top of the separation box 1, a microwave generator 2 arranged at the bottom of the separation box 1, and a support frame 12 arranged at the bottom of the separation box 1. A filter screen 3 is fixedly arranged in the separation box 1, and the filter screen 3 is cylindrical. A driving assembly 4 is arranged on the separation box 1, and two groups of separation assemblies 5 are arranged on the driving assembly 4. A guide assembly 6 is arranged above the separation assembly 5, and a blowing assembly 7 is arranged below it. The microwave generator 2 is used to heat the asphalt mixture in the separation box 1, the guide assembly 6 is used to disperse the asphalt mixture on the separation assembly 5, the driving assembly 4 is used to drive the separation assembly 5 to rotate and separate the asphalt and aggregate with the cooperation of the filter screen 3, and the blowing assembly 7 is used to speed up the separation speed between the asphalt and the aggregate.

[0032] like Figure 1 and Figure 2 As shown, the driving assembly 4 includes a motor 41 fixedly arranged on the support frame 12, a first synchronous wheel 42 fixedly connected to the output shaft of the motor 41, a rotating shaft 43 rotatably arranged in the separation box 1, and a second synchronous wheel 44 fixedly arranged on the rotating shaft 43. The first synchronous wheel 42 and the second synchronous wheel 44 are connected by a first synchronous belt 45. The rotating shaft 43 is a hollow structure. When in use, the asphalt mixture is put into the separation box 1, and the asphalt mixture falls on the screening plate 51. The separation box 1 is heated by the microwave generator 2, so that the asphalt gradually changes from solid to liquid during the heating process. When the temperature reaches the set temperature, the motor 41 starts to drive the rotating shaft 43 to rotate, so that the rotating shaft 43 drives the screening plate 51 to rotate. Under the action of centrifugal force, the asphalt and aggregate are separated, and the asphalt passes through the filter screen 3 and is thrown onto the inner wall of the separation box 1. Due to the gravity of the asphalt itself, it can fall on the discharge plate 8, thereby achieving the effect of separating the asphalt and aggregate, and the asphalt mixture is driven to rotate by the screening plate 51, so that the asphalt mixture is heated evenly and the separation effect is good.

[0033] like Figure 2As shown, the separation component 5 includes a sieve plate 51 fixedly arranged on the rotating shaft 43 and sieve holes 52 opened on the sieve plate 51. The aperture of the sieve holes 52 on the sieve plate 51 located above the rotating shaft 43 is larger than the aperture of the sieve holes 52 on the sieve plate 51 located below the rotating shaft 43. The two sieve plates 51 are distributed in a linear array. By setting two sieve plates 51 with different apertures, the aggregate is screened in the first and second levels, so as to avoid the asphalt still containing aggregates when the asphalt is collected, thereby affecting the asphalt recovery rate.

[0034] like Figure 2 As shown, the guide assembly 6 includes a dispersion plate 62 fixedly arranged in the filter screen 3 by a support rod 61, a drop opening 63 opened in the middle of the dispersion plate 62, an air blowing hole 64 opened at the bottom of the dispersion plate 62, a plurality of first hollow rods 65 fixedly arranged in the middle of the dispersion plate 62, a first fixing ring 66 fixedly arranged at the end of the first hollow rod 65 and a guide plate 67 fixedly arranged on one side of the dispersion plate 62, the first fixing ring 66 is sleeved on the rotating shaft 43, the top of the dispersion plate 62 is a sloped structure, the dispersion plate 62 and the guide plate 67 are both hollow structures, the interior of the first fixing ring 66 is connected to the interior of the rotating shaft 43, when in use, when the asphalt mixture is located on the screening plate 51, the air pump 9 is started to deliver gas to the rotating shaft 43, so that the air blowing hole 64 blows air into the asphalt mixture, blows the asphalt away from the aggregate, and the asphalt passes through the screening plate 51 and falls onto the discharge plate 8. The plate 62 causes the screening plate 51 to rotate while being blocked by the dispersion plate 62. Due to the action of centrifugal force, the asphalt mixture will move along the bottom of the dispersion plate 62 to the outside of the screening plate 51. At the same time, under the action of the first blowing nozzle 72, the asphalt mixture on the screening plate 51 is blown upward, so that the asphalt mixture is spread flat on the inner wall of the filter screen 3 along the guide plate 67. Then, air is blown into the asphalt mixture through the second blowing nozzle 68 to blow the asphalt on the aggregate toward the inner wall of the separation box 1. The aggregate enters the aggregate discharge pipe 16 and is discharged from the aggregate outlet 15 under the blowing of the second blowing nozzle 68 and the guidance of the guide plate 67. This method enables the asphalt to be quickly separated from the aggregate, thereby improving the separation efficiency. Moreover, under the action of the dispersion plate 62, the asphalt mixture can be spread flat on the screening plate 51, so that the asphalt mixture is heated more evenly and the separation effect of asphalt and aggregate is better.

[0035] like Figure 2As shown, the blowing assembly 7 includes a fixing seat 71 fixedly arranged on the inner side wall of the filter screen 3, a plurality of first blowing nozzles 72 fixedly arranged on the fixing seat 71, a second hollow rod 73 fixedly arranged on the fixing seat 71, and a second fixing ring 74 fixedly arranged on the second hollow rod 73. The second fixing ring 74 is sleeved on the rotating shaft 43, and the interior of the second fixing ring 74 is connected to the interior of the rotating shaft 43. When in use, when the screening plate 51 drives the asphalt mixture to rotate above the first blowing nozzle 72, the first blowing nozzle 72 blows air toward the asphalt mixture on the screening plate 51 to complete the separation of asphalt and aggregate.

[0036] like Figure 2 As shown, a discharge plate 8 is fixedly provided at the bottom of the separation box 1, and the discharge plate 8 is tilted in the separation box 1. The top of the filter screen 3 is fixedly connected to the top of the inner wall of the separation box 1, and its bottom is fixedly connected to the top of the discharge plate 8 through a fixing rod 31. The discharge plate 8 is tilted toward the asphalt outlet 13, so that the asphalt flows more smoothly to the asphalt outlet 13, which is convenient for collecting the asphalt.

[0037] like Figure 2 As shown, an asphalt outlet 13 is provided on one side of the separation box 1, and a filter plate 14 is provided at the asphalt outlet 13. The asphalt outlet 13 corresponds to the discharge plate 8. By providing the filter plate 14, the fine aggregates in the asphalt are filtered, so that there are no other impurities in the asphalt, thereby improving the recovery rate of the asphalt.

[0038] like Figure 2 As shown, two aggregate outlets 15 are provided on the side wall of the separation box 1. An aggregate discharge pipe 16 is fixedly connected between the aggregate outlet 15 and the outer wall of the filter screen 3. The aggregate discharge pipe 16 corresponds to the guide plate 67. The two aggregate outlets 15 are distributed in a linear array. Under the guidance of the guide plate 67, the aggregate enters the aggregate discharge pipe 16 and is discharged from the aggregate outlet 15 to complete the collection of the aggregate.

[0039] like Figure 1 As shown, a fixing sleeve 17 is fixedly provided on the support frame 12, and the fixing sleeve 17 is sleeved on the rotating shaft 43. An air pump 9 is fixedly provided on the support frame 12, and an air pipe 91 is fixedly connected between the output end of the air pump 9 and the fixing sleeve 17. The interior of the fixing sleeve 17 is connected to the interior of the rotating shaft 43. When in use, the air pump 9 is turned on to transport the gas through the air pipe 91 and the fixing sleeve 17 to the rotating shaft 43, so that the gas enters the guide assembly 6 and the blowing assembly 7 through the rotating shaft 43. Example 2

[0040] like Figure 2As shown, the components that are the same as or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the second embodiment and the first embodiment is that a plurality of second air blowing nozzles 68 are fixedly provided on the guide plate 67. By providing the second air blowing nozzles 68 to blow air toward the aggregate at the guide plate 67, the asphalt on the aggregate is completely separated from the aggregate, the separation effect is better, and the recycling rate is improved.

[0041] Working process

[0042] First, the asphalt mixture is put into the separation box 1, and the asphalt mixture falls on the screening plate 51. The separation box 1 is heated by the microwave generator 2, so that the asphalt gradually changes from solid to liquid during the heating process. When the temperature reaches the set temperature, the motor 41 starts to drive the rotating shaft 43 to rotate, so that the rotating shaft 43 drives the screening plate 51 to rotate. Under the action of centrifugal force, the asphalt and the aggregate are initially separated. The asphalt passes through the filter 3 and is thrown onto the inner wall of the separation box 1. Due to the gravity of the asphalt itself, it can fall on the discharge plate 8. At the same time, the air pump 9 starts to transport the gas into the rotating shaft 43, so that the blowing holes 64 on the dispersion plate 62 blow air to the asphalt mixture on the screening plate 51, blowing the asphalt away from the aggregate. The asphalt passes through the screening plate 51 and falls onto the discharge plate 8. By setting the dispersion plate 62, the screening As the separation plate 51 rotates, the asphalt mixture is blocked by the dispersion plate 62. Due to the action of centrifugal force, the asphalt mixture will move along the bottom of the dispersion plate 62 to the outside of the screening plate 51. When the screening plate 51 drives the asphalt mixture to rotate above the first blowing nozzle 72, the first blowing nozzle 72 blows air upward to the asphalt mixture on the screening plate 51, so that the asphalt mixture is spread flat on the inner wall of the filter screen 3 along the guide plate 67, and then the second blowing nozzle 68 blows air into the asphalt mixture to blow the asphalt on the aggregate toward the inner wall of the separation box 1. The aggregate enters the aggregate discharge pipe 16 under the blowing of the second blowing nozzle 68 and the guidance of the guide plate 67 and is discharged from the aggregate outlet 15, finally completing the collection of asphalt and aggregate respectively. This method enables the asphalt to be quickly separated from the aggregate, thereby improving the separation efficiency.

[0043] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0044] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0045] The above description in conjunction with the accompanying drawings is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. It should be pointed out that for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the scope of protection of the present invention and will not affect the effect and practicality of the implementation of the present invention.

Claims

1. An asphalt mixture regeneration device based on microwave heating technology, comprising a separation box (1), a box cover (11) arranged at the top of the separation box (1), a microwave generator (2) arranged at the bottom of the separation box (1), and a support frame (12) arranged at the bottom of the separation box (1), characterized in that: A filter screen (3) is fixedly provided in the separation box (1), and the filter screen (3) is cylindrical. A driving assembly (4) is provided on the separation box (1), and two groups of separation assemblies (5) are provided on the driving assembly (4). A guide assembly (6) is provided above the separation assembly (5), and a blowing assembly (7) is provided below the separation assembly (5). The microwave generator (2) is used to heat the asphalt mixture in the separation box (1), and the guide assembly (6) is used to disperse the asphalt mixture on the separation assembly (5). The driving assembly (4) is used to drive the separation assembly (5) to rotate and separate the asphalt and aggregate in cooperation with the filter screen (3), and the blowing assembly (7) is used to accelerate the separation speed between the asphalt and the aggregate. The driving assembly (4) comprises a rotating shaft (43) rotatably arranged in the separation box (1), and the rotating shaft (43) is a hollow structure; The guide assembly (6) includes a dispersion plate (62) fixedly arranged in the filter screen (3) through a support rod (61), a drop opening (63) opened in the middle of the dispersion plate (62), an air blowing hole (64) opened at the bottom of the dispersion plate (62), a plurality of first hollow rods (65) fixedly arranged in the middle of the dispersion plate (62), a first fixing ring (66) fixedly arranged at the end of the first hollow rod (65), and a guide plate (67) fixedly arranged on one side of the dispersion plate (62), the first fixing ring (66) is sleeved on the rotating shaft (43), the top of the dispersion plate (62) is a sloped structure, the dispersion plate (62) and the guide plate (67) are both hollow structures, and the interior of the first fixing ring (66) is connected to the interior of the rotating shaft (43); Two aggregate outlets (15) are provided on the side wall of the separation box (1), an aggregate discharge pipe (16) is fixedly connected between the aggregate outlet (15) and the outer side wall of the filter screen (3), the aggregate discharge pipe (16) corresponds to the guide plate (67), and the two aggregate outlets (15) are distributed in a linear array; A plurality of second air blowing nozzles (68) are fixedly arranged on the guide plate (67).

2. The asphalt mixture regeneration device based on microwave heating technology according to claim 1 is characterized in that: The driving assembly (4) further comprises a motor (41) fixedly mounted on the support frame (12), a first synchronous wheel (42) fixedly connected to an output shaft of the motor (41), and a second synchronous wheel (44) fixedly mounted on a rotating shaft (43), wherein the first synchronous wheel (42) and the second synchronous wheel (44) are connected in transmission via a first synchronous belt (45).

3. The asphalt mixture regeneration device based on microwave heating technology according to claim 2 is characterized in that: The separation assembly (5) comprises a sieve plate (51) fixedly arranged on the rotating shaft (43) and sieve holes (52) opened on the sieve plate (51), the sieve holes (52) on the sieve plate (51) located above the rotating shaft (43) have a larger aperture than the sieve holes (52) on the sieve plate (51) located below the rotating shaft (43), and the two sieve plates (51) are distributed in a linear array.

4. The asphalt mixture regeneration device based on microwave heating technology according to claim 2 is characterized in that: The blowing assembly (7) comprises a fixing seat (71) fixedly arranged on the inner side wall of the filter screen (3), a plurality of first blowing nozzles (72) fixedly arranged on the fixing seat (71), a second hollow rod (73) fixedly arranged on the fixing seat (71), and a second fixing ring (74) fixedly arranged on the second hollow rod (73), wherein the second fixing ring (74) is sleeved on the rotating shaft (43), and the interior of the second fixing ring (74) is communicated with the interior of the rotating shaft (43).

5. The asphalt mixture regeneration device based on microwave heating technology according to claim 1 is characterized in that: A discharge plate (8) is fixedly provided at the bottom of the separation box (1), and the discharge plate (8) is tilted in the separation box (1). The top of the filter screen (3) is fixedly connected to the top of the inner wall of the separation box (1), and the bottom thereof is fixedly connected to the top of the discharge plate (8) via a fixing rod (31).

6. The asphalt mixture regeneration device based on microwave heating technology according to claim 5 is characterized in that: An asphalt outlet (13) is provided on one side of the separation box (1), a filter plate (14) is provided at the asphalt outlet (13), and the asphalt outlet (13) corresponds to the discharge plate (8).

7. The asphalt mixture regeneration device based on microwave heating technology according to claim 2 is characterized in that: A fixing sleeve (17) is fixedly provided on the support frame (12), and the fixing sleeve (17) is sleeved on the rotating shaft (43). An air pump (9) is fixedly provided on the support frame (12), and an air pipe (91) is fixedly connected between the output end of the air pump (9) and the fixing sleeve (17), and the interior of the fixing sleeve (17) is communicated with the interior of the rotating shaft (43).

Images