Colored asphalt preparation device and preparation method thereof

Abstract

The present invention discloses a colored asphalt preparation device and a preparation method thereof, belonging to the technical field of asphalt processing, comprising a processing cylinder, an end cylinder connected to the inside of the processing cylinder is fixed on the top of the processing cylinder, an adding component is arranged inside the end cylinder, two symmetrically distributed bracket plates are fixed on the outer wall of the bottom end of the processing cylinder, a bottom plate is commonly fixed at the bottom ends of the two bracket plates, a stirring component is arranged inside the processing cylinder, and a discharging component is arranged at the bottom of the stirring component; the present invention fully stirs the asphalt raw materials inside the processing cylinder at multiple points through the stirring component, mixes the materials more evenly, improves the uniform mixing efficiency of the materials, thereby improving the quality of the asphalt finished product, and disperses and evenly sprinkles the surfactant type warm mix agent and other additives into the asphalt raw materials that are constantly stirred inside the processing cylinder through the adding component, so that the additives and the asphalt raw materials are quickly and evenly mixed and stirred, effectively improving the uniform mixing efficiency of the additives.

Description

Technical Field

[0001] The invention belongs to the technical field of asphalt processing, and particularly relates to a colored asphalt preparation device and a preparation method thereof. Background Art

[0002] Colored asphalt, also known as colored binder, is a binder that imitates the components of petroleum asphalt and is modified by blending petroleum resin with chemical materials such as SBS modifier. This asphalt itself is not colored or colorless, but dark brown. In recent years, it is collectively referred to as colored asphalt due to market habits. Colored asphalt requires the use of a mixing preparation device during production. During the preparation of colored warm-mix asphalt mixture, the surfactant-type warm-mix agent, asphalt and other raw materials need to be stirred and mixed through a dispersion device.

[0003] For example, Chinese patent publication number: CN211800642U discloses a dispersing device for preparing colored warm-mix asphalt mixture, which is used to solve the problem that the existing dispersing devices are not capable of adjusting the stirring speed, temperature and setting the automatic control program at the same time. The dispersing device for preparing colored warm-mix asphalt mixture includes a mixing barrel, which is a cylindrical structure with an open top, and a barrel cover is provided on the mixing barrel. A motor is provided horizontally on the upper surface of the barrel cover, and a rotating shaft is provided vertically. The rotating shaft is connected to the output shaft of the motor through a bevel gear; the rotating shaft passes through the barrel cover and is connected to a base provided at the bottom of the mixing barrel, and stirring blades are provided circumferentially on the rotating shaft; a heating plate is provided on the side wall of the mixing barrel, and a temperature sensor is provided at the bottom of the mixing barrel, and the motor, heating plate and temperature sensor are all connected to the control panel.

[0004] There are still some shortcomings in the above application. The material stirring and mixing effect in the above application is poor, which easily causes uneven mixing of colored asphalt and affects the mixing efficiency of colored asphalt. At the same time, it is difficult to take out the mixed materials. The material removal is cumbersome and inconvenient, and it is difficult to remove the materials adhered to the inner wall of the mixing barrel.

[0005] Therefore, a colored asphalt preparation device and a preparation method thereof are needed to solve the problems raised in the above background technology. Summary of the invention

[0006] The purpose of the present invention is to provide a colored asphalt preparation device and a preparation method thereof to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a colored asphalt preparation device, comprising a processing cylinder, an end cylinder connected to the interior of the processing cylinder is fixed on the top of the processing cylinder, an adding component is arranged inside the end cylinder, two symmetrically distributed support plates are fixed on the outer wall of the bottom end of the processing cylinder, a bottom plate is commonly fixed at the bottom ends of the two support plates, a third drive motor is fixed on the top side of the bottom plate, a stirring component is arranged inside the processing cylinder, and a discharging component transmission-connected to the third drive motor is arranged at the bottom of the stirring component.

[0008] It should be noted in the scheme that the adding component includes a connecting tube rotatably connected to the top side wall of the end tube, a sprinkling barrel connected to the connecting tube is fixed to the bottom end of the connecting tube, a cavity is opened inside the sprinkling barrel, and a discharge port connected to the internal cavity of the sprinkling barrel is opened on the column side of the sprinkling barrel, and the discharge port is provided in plurality and the plurality of discharge ports are equidistantly distributed.

[0009] It is further worth mentioning that a first gear is fixed on the outer wall of the connecting tube, a first driving motor is fixed on the top outer wall of the end tube, and a second gear meshing with the first gear is fixed on the output end of the first driving motor.

[0010] It should be further explained that a feed hopper connected to the connecting pipe is fixed on the top of the connecting pipe.

[0011] As a preferred embodiment, the stirring assembly includes an end cover plate arranged at the open end of the processing cylinder, a second drive motor is fixed on the outer wall of the end cover plate, a stirring shaft is rotatably connected at the center of the end cover plate, an output end of the second drive motor is fixed to one end of the stirring shaft, and a plurality of first stirring rods distributed in a ring are fixed on the side of the stirring shaft.

[0012] As a preferred embodiment, a second stirring rod is fixed on the side of the first stirring rod, and a plurality of the second stirring rods are provided and are distributed at equal distances.

[0013] As a preferred embodiment, the discharging assembly includes a scraper plate rotatably connected to the end of the stirring shaft away from the end cover plate, a connecting rod is fixed to the bottom end of the end cover plate, a rack plate is fixed to the bottom end of the connecting rod, and a driving gear meshing with the rack plate is fixed to the output end of the third drive motor.

[0014] As a preferred embodiment, a guide groove arranged along the length direction of the bottom plate and slidably matched with the rack plate is fixed on the top side of the bottom plate, and a slope is provided at the edge of the scraper plate.

[0015] A method for preparing colored asphalt comprises the following steps:

[0016] S1, by putting the asphalt raw material into the processing cylinder through the open end of the processing cylinder, the third driving motor drives the driving gear to rotate, so that the end cover plate is driven to move toward the open end of the processing cylinder through the cooperation of the driving gear, the rack plate and the connecting rod, and the open end is closed by the end cover plate;

[0017] S2, starting the second drive motor to work, the output end of the second drive motor drives the stirring shaft to rotate, so that the asphalt raw material inside the processing cylinder is fully stirred by the multiple first stirring rods on the stirring shaft;

[0018] S3, putting the surfactant type warm mix agent and other additives into the connecting pipe, so as to deliver the additives to the inside of the material sprinkling barrel through the connecting pipe, start the first drive motor to work, and the output end of the first drive motor drives the second gear to rotate, so as to drive the connecting pipe and the material sprinkling barrel to rotate rapidly through the cooperation of the second gear and the first gear, so that the additives in the material sprinkling barrel are dispersed and evenly sprinkled into the asphalt raw material that is constantly stirred in the processing barrel through multiple discharge ports, so that the additives and the asphalt raw material are quickly and evenly mixed and stirred;

[0019] S4. When it is necessary to take out the material that has been stirred inside the processing cylinder, the third driving motor drives the driving gear to rotate, thereby driving the end cover plate to move away from the open end of the processing cylinder through the cooperation of the driving gear, the rack plate and the connecting rod, thereby removing the stirring shaft, the first stirring rod and the second stirring rod from the interior of the processing cylinder, thereby facilitating the cleaning of the first stirring rod and the second stirring rod. At the same time, the stirring shaft synchronously drives the scraper plate to move inside the processing cylinder, thereby pushing the material inside the processing cylinder out through the moving scraper plate, forming automatic discharging, and scraping off the material adhering to the inner wall of the processing cylinder through the provided scraper plate.

[0020] Compared with the prior art, the colored asphalt preparation device and preparation method provided by the present invention have at least the following beneficial effects:

[0021] (1) The output end of the first driving motor drives the second gear to rotate, and the second gear and the first gear cooperate to drive the connecting pipe and the sprinkler barrel to rotate rapidly, so that the additive inside the sprinkler barrel is dispersed and evenly sprinkled into the asphalt raw material that is constantly stirred inside the processing barrel through multiple discharge ports, so that the additive and the asphalt raw material are quickly and evenly mixed and stirred, effectively improving the uniform mixing efficiency of the additive.

[0022] (2) The output end of the second driving motor drives the stirring shaft to rotate, so that the asphalt raw materials inside the processing cylinder are fully stirred by the multiple first stirring rods on the stirring shaft, and the materials are mixed more evenly, thereby improving the uniform mixing efficiency of the materials and improving the quality of the asphalt finished product.

[0023] (3) When it is necessary to take out the material that has been stirred inside the processing cylinder, the third driving motor drives the driving gear to rotate, so that the driving gear, the rack plate and the connecting rod cooperate to drive the end cover plate to move away from the open end of the processing cylinder, so that the stirring shaft, the first stirring rod and the second stirring rod are removed from the interior of the processing cylinder, so as to facilitate the cleaning of the first stirring rod and the second stirring rod. At the same time, the stirring shaft synchronously drives the scraper plate to move inside the processing cylinder, so that the material inside the processing cylinder is pushed out by the moving scraper plate, forming automatic discharging. The material adhering to the inner wall of the processing cylinder is scraped off by the scraper plate, which effectively improves the overall material retrieval adequacy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall front view structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0027] Figure 4 The local structure diagram of the added component of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 5 It is a schematic diagram of the local structure of the stirring assembly of the present invention;

[0029] Figure 6 It is a schematic diagram of the partial structure of the discharging assembly of the present invention;

[0030] Figure 7 for Figure 1 The enlarged structural diagram at A in the middle;

[0031] Figure 8 The local structure diagram of the added component of the present invention is shown in FIG. Figure 2 .

[0032] In the figure: 1. Adding component; 101. Sprinkling barrel; 102. Discharging port; 103. Connecting pipe; 104. Feed hopper; 105. First gear; 106. Second gear; 107. First drive motor; 2. Stirring component; 201. Stirring shaft; 202. First stirring rod; 203. Second stirring rod; 204. End cover plate; 205. Second drive motor; 3. Discharging component; 301. Rack plate; 302. Connecting rod; 303. Scraper plate; 304. Inclined surface; 305. Drive gear; 306. Guide chute; 4. Processing barrel; 5. End barrel; 6. Support plate; 7. Bottom plate; 8. Third drive motor. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the embodiments.

[0034] See also Figure 1-8 The present invention provides a colored asphalt preparation device, including a processing cylinder 4, an end cylinder 5 connected to the inside of the processing cylinder 4 is fixed on the top of the processing cylinder 4, an adding component 1 is arranged inside the end cylinder 5, two symmetrically distributed bracket plates 6 are fixed on the outer wall of the bottom end of the processing cylinder 4, a bottom plate 7 is fixed to the bottom ends of the two bracket plates 6, a third driving motor 8 is fixed to the top side of the bottom plate 7, a stirring component 2 is arranged inside the processing cylinder 4, and a discharging component 3 connected to the third driving motor 8 is arranged at the bottom of the stirring component 2; when in use, the asphalt raw material is thrown into the processing cylinder 4 through the open end of the processing cylinder 4. The asphalt raw materials in the processing cylinder 4 are fully stirred at multiple points by the stirring component 2, and the materials are mixed more evenly, thereby improving the uniform mixing efficiency of the materials and thus improving the quality of the asphalt finished product. The surfactant-type warm mix agent and other additives are evenly dispersed and sprinkled into the asphalt raw materials that are constantly stirred in the processing cylinder 4 by the adding component 1, so that the additives and the asphalt raw materials are quickly and evenly mixed and stirred, effectively improving the uniform mixing efficiency of the additives.

[0035] Further as Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, it is worth specifically explaining that the adding component 1 includes a connecting pipe 103 rotatably connected to the top side wall of the end tube 5, a sprinkling barrel 101 connected to the connecting pipe 103 is fixed at the bottom end of the connecting pipe 103, a cavity is opened inside the sprinkling barrel 101, and a discharge port 102 connected to the internal cavity of the sprinkling barrel 101 is opened on the column side of the sprinkling barrel 101, and the discharge port 102 is provided with a plurality of discharge ports 102 and the plurality of discharge ports 102 are equidistantly distributed; in specific operation, the surfactant type warm mix agent and the remaining additives are put into the connecting pipe 103, thereby passing through the connecting pipe 103 delivers the additive to the inside of the material sprinkling barrel 101, starts the first drive motor 107 to work, and the output end of the first drive motor 107 drives the second gear 106 to rotate, thereby driving the connecting pipe 103 and the material sprinkling barrel 101 to rotate quickly through the cooperation of the second gear 106 and the first gear 105, so that the additive inside the material sprinkling barrel 101 is dispersed and evenly sprinkled through multiple discharge ports 102 into the asphalt raw material that is constantly stirred inside the processing barrel 4, so that the additive and the asphalt raw material are quickly and evenly mixed and stirred, effectively improving the uniform mixing efficiency of the additive.

[0036] Further as Figure 7 As shown, it is worth explaining in detail that a first gear 105 is fixed on the outer wall of the connecting pipe 103, a first drive motor 107 is fixed on the outer wall of the top end of the end tube 5, and a second gear 106 meshingly connected with the first gear 105 is fixed on the output end of the first drive motor 107; during specific operation, the second gear 106 is driven to rotate by the output end of the first drive motor 107, thereby driving the connecting pipe 103 and the sprinkler barrel 101 to rotate synchronously through the cooperation of the second gear 106 and the first gear 105.

[0037] Further as Figure 5 , Figure 7 and Figure 8 As shown, it is worth explaining in detail that a feed hopper 104 connected to the connecting pipe 103 is fixed on the top of the connecting pipe 103; during specific operation, the feed hopper 104 is provided to facilitate the feeding of additives into the connecting pipe 103 and the inside of the sprinkler barrel 101, which is convenient for operation.

[0038] Further as Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, it is worth specifically explaining that the stirring assembly 2 includes an end cover plate 204 arranged at the open end of the processing cylinder 4, a second drive motor 205 is fixed on the outer wall of the end cover plate 204, a stirring shaft 201 is rotatably connected at the center of the end cover plate 204, an output end of the second drive motor 205 is fixed to one end of the stirring shaft 201, and a plurality of first stirring rods 202 distributed in a ring are fixed on the side of the stirring shaft 201; during specific operation, the second drive motor 205 is started to work, and the output end of the second drive motor 205 drives the stirring shaft 201 to rotate, so that the asphalt raw materials inside the processing cylinder 4 are fully stirred by the plurality of first stirring rods 202 on the stirring shaft 201, the materials are mixed more evenly, the uniform mixing efficiency of the materials is improved, and thus the quality of the asphalt finished product is improved.

[0039] Further Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, it is worth specifically explaining that the discharging assembly 3 includes a scraper plate 303 rotatably connected to the end of the stirring shaft 201 away from the end cover plate 204, a connecting rod 302 is fixed to the bottom end of the end cover plate 204, a rack plate 301 is fixed to the bottom end of the connecting rod 302, and a driving gear 305 meshingly connected to the rack plate 301 is fixed to the output end of the third driving motor 8; when it is necessary to take out the material that has been stirred inside the processing cylinder 4, the driving gear 305 is driven to rotate by the third driving motor 8, so that the driving gear 305, the rack plate 301 and the connecting rod 302 cooperate to form a plurality of material discharging units. The end cover plate 204 is driven to move in the direction away from the open end of the processing cylinder 4, so that the stirring shaft 201, the first stirring rod 202 and the second stirring rod 203 are removed from the interior of the processing cylinder 4, so as to facilitate the cleaning of the first stirring rod 202 and the second stirring rod 203. At the same time, the stirring shaft 201 synchronously drives the scraper plate 303 to move inside the processing cylinder 4, so that the material inside the processing cylinder 4 is pushed out by the moving scraper plate 303, forming automatic discharging. The material adhered to the inner wall of the processing cylinder 4 is scraped off by the set scraper plate 303, thereby effectively improving the overall material sufficiency.

[0040] The present solution has the following working process: by putting the asphalt raw material into the inside of the processing barrel 4 through the open end of the processing barrel 4, the third driving motor 8 drives the driving gear 305 to rotate, thereby driving the end cover plate 204 to move toward the direction close to the open end of the processing barrel 4 through the cooperation of the driving gear 305, the rack plate 301 and the connecting rod 302, and the open end of 4 is closed by the end cover plate 204, and the second driving motor 205 is started to work, and the output end of the second driving motor 205 drives the stirring shaft 201 to rotate, so that the asphalt raw material inside the processing barrel 4 is fully stirred through the multiple first stirring rods 202 on the stirring shaft 201; the surfactant type warm mix agent and the remaining additives are put into the connecting pipe 103, so that the additives are delivered to the inside of the sprinkling barrel 101 through the connecting pipe 103, and the first driving motor 107 is started to work, and the output end of the first driving motor 107 drives the second gear 106 to rotate, so that the connecting pipe 101 is driven by the cooperation of the second gear 106 and the first gear 105. 03 and the material sprinkling barrel 101 rotate rapidly, so that the additive in the material sprinkling barrel 101 is dispersed and evenly sprinkled into the asphalt raw material that is constantly stirred in the processing barrel 4 through multiple discharge ports 102, so that the additive and the asphalt raw material are quickly and evenly mixed and stirred; when it is necessary to take out the material that has been stirred in the processing barrel 4, the third drive motor 8 drives the drive gear 305 to rotate, so that the end cover plate 204 is driven to move away from the processing barrel through the cooperation of the drive gear 305, the rack plate 301 and the connecting rod 302 4, so that the stirring shaft 201, the first stirring rod 202 and the second stirring rod 203 are moved out from the interior of the processing cylinder 4, so as to facilitate the cleaning of the first stirring rod 202 and the second stirring rod 203. At the same time, the stirring shaft 201 synchronously drives the scraper plate 303 to move inside the processing cylinder 4, so that the material inside the processing cylinder 4 is pushed out by the moving scraper plate 303, forming automatic discharging, and the material adhering to the inner wall of the processing cylinder 4 is scraped off by the provided scraper plate 303.

[0041] Further Figure 1 and Figure 6 As shown, it is worth explaining in detail that a guide groove 306 arranged along the length direction of the bottom plate 7 and slidably adapted to the rack plate 301 is fixed on the top side surface of the bottom plate 7, and a slope 304 is provided at the edge of the scraper plate 303; during specific operation, the movement of the rack plate 301 is guided and limited by the provided guide groove 306, thereby improving the stability of the movement and adjustment of the end cover plate 204.

[0042] Further Figure 6As shown, it is worth mentioning that a second stirring rod 203 is fixed on the side of the first stirring rod 202, and a plurality of second stirring rods 203 are arranged and the plurality of second stirring rods 203 are equidistantly distributed; during specific operation, the stirring shaft 201 is arranged to drive the first stirring rod 202 and the second stirring rod 203 to fully stir the material inside the processing cylinder 4 at multiple points, thereby assisting the stirring and improving the overall stirring effect.

[0043] A method for preparing colored asphalt comprises the following steps:

[0044] S1. By putting the asphalt raw material into the processing cylinder 4 through the open end, the third driving motor 8 drives the driving gear 305 to rotate, so that the end cover plate 204 is driven to move toward the open end of the processing cylinder 4 through the cooperation of the driving gear 305, the rack plate 301 and the connecting rod 302, and the open end of 4 is closed by the end cover plate 204;

[0045] S2, starting the second drive motor 205 to work, the output end of the second drive motor 205 drives the stirring shaft 201 to rotate, so that the asphalt raw material inside the processing cylinder 4 is fully stirred by the multiple first stirring rods 202 on the stirring shaft 201;

[0046] S3, the surfactant type warm mix agent and the remaining additives are put into the connecting pipe 103, so that the additives are delivered to the inside of the material sprinkling barrel 101 through the connecting pipe 103, and the first drive motor 107 is started to work, and the output end of the first drive motor 107 drives the second gear 106 to rotate, so that the second gear 106 and the first gear 105 cooperate to drive the connecting pipe 103 and the material sprinkling barrel 101 to rotate rapidly, so that the additives in the material sprinkling barrel 101 are dispersed and evenly sprinkled into the asphalt raw material that is constantly stirred in the processing barrel 4 through the multiple discharge ports 102, so that the additives and the asphalt raw material are quickly and evenly mixed and stirred;

[0047] S4. When it is necessary to take out the material that has been stirred inside the processing cylinder 4, the third driving motor 8 drives the driving gear 305 to rotate, so that the cooperation of the driving gear 305, the rack plate 301 and the connecting rod 302 drives the end cover plate 204 to move away from the open end of the processing cylinder 4, so that the stirring shaft 201, the first stirring rod 202 and the second stirring rod 203 are removed from the interior of the processing cylinder 4, so as to facilitate the cleaning of the first stirring rod 202 and the second stirring rod 203. At the same time, the stirring shaft 201 synchronously drives the scraper plate 303 to move inside the processing cylinder 4, so that the material inside the processing cylinder 4 is pushed out by the moving scraper plate 303, forming automatic discharging, and the material adhering to the inner wall of the processing cylinder 4 is scraped off by the set scraper plate 303.

[0048] In summary: the discharging component 3 drives the stirring component 2 to extend into the interior of the processing barrel 4, and the stirring component 2 is started to work, so that the asphalt raw material inside the processing barrel 4 is fully stirred at multiple points through the stirring component 2, and the material is mixed more evenly, thereby improving the uniform mixing efficiency of the material, thereby improving the quality of the asphalt finished product, and the surfactant type warm mix agent and other additives are dispersed and evenly sprinkled into the asphalt raw material that is constantly stirred inside the processing barrel 4 through the adding component 1, so that the additive and the asphalt raw material are quickly and evenly mixed and stirred, effectively improving the uniform mixing efficiency of the additive.

[0049] The first drive motor 107 , the second drive motor 205 and the third drive motor 8 can be purchased on the market. The first drive motor 107 , the second drive motor 205 and the third drive motor 8 are equipped with power supplies, which are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

Claims

1. A colored asphalt preparation device, comprising a processing cylinder (4), characterized in that: An end tube (5) connected to the interior of the processing tube (4) is fixed on the top of the processing tube (4), and an adding component (1) is arranged inside the end tube (5). Two symmetrically distributed support plates (6) are fixed on the outer wall of the bottom end of the processing tube (4), and a bottom plate (7) is fixed to the bottom ends of the two support plates (6). A third drive motor (8) is fixed to the top side of the bottom plate (7). A stirring component (2) is arranged inside the processing tube (4), and a discharging component (3) connected to the third drive motor (8) is arranged at the bottom of the stirring component (2).

2. A colored asphalt preparation device according to claim 1, characterized in that: The adding component (1) comprises a connecting tube (103) rotatably connected to the top side wall of the end tube (5); a material sprinkling tube (101) connected to the connecting tube (103) is fixed at the bottom end of the connecting tube (103); a cavity is provided inside the material sprinkling tube (101); a discharge port (102) connected to the internal cavity of the material sprinkling tube (101) is provided on the column side surface of the material sprinkling tube (101); a plurality of the discharge ports (102) are provided and the plurality of discharge ports (102) are equidistantly distributed.

3. A colored asphalt preparation device according to claim 2, characterized in that: A first gear (105) is fixed on the outer wall of the connecting tube (103), a first driving motor (107) is fixed on the outer wall of the top end of the end tube (5), and a second gear (106) meshingly connected with the first gear (105) is fixed on the output end of the first driving motor (107).

4. A colored asphalt preparation device according to claim 3, characterized in that: A feed hopper (104) connected to the connecting pipe (103) is fixed on the top end of the connecting pipe (103).

5. The colored asphalt preparation device according to claim 1, characterized in that: The stirring assembly (2) comprises an end cover plate (204) arranged at the open end of the processing cylinder (4), a second drive motor (205) is fixed on the outer wall of the end cover plate (204), a stirring shaft (201) is rotatably connected at the center of the end cover plate (204), an output end of the second drive motor (205) is fixed to one end of the stirring shaft (201), and a plurality of first stirring rods (202) distributed in an annular shape are fixed on the side of the stirring shaft (201).

6. A colored asphalt preparation device according to claim 5, characterized in that: A second stirring rod (203) is fixed on the side of the first stirring rod (202), and a plurality of the second stirring rods (203) are provided and the plurality of second stirring rods (203) are distributed at equal distances.

7. A colored asphalt preparation device according to claim 6, characterized in that: The discharging assembly (3) comprises a scraper plate (303) rotatably connected to an end of the stirring shaft (201) away from the end cover plate (204); a connecting rod (302) is fixed to the bottom end of the end cover plate (204); a rack plate (301) is fixed to the bottom end of the connecting rod (302); and a driving gear (305) meshingly connected to the rack plate (301) is fixed to the output end of the third driving motor (8).

8. A colored asphalt preparation device according to claim 7, characterized in that: A guide groove (306) arranged along the length direction of the bottom plate (7) and slidably matched with the rack plate (301) is fixed on the top side surface of the bottom plate (7), and a slope (304) is provided at the edge of the scraper plate (303).

9. A method for preparing colored asphalt according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, by putting the asphalt raw material into the processing cylinder (4) through the open end of the processing cylinder (4), the third driving motor (8) drives the driving gear (305) to rotate, so that the end cover plate (204) is driven to move toward the open end of the processing cylinder (4) through the cooperation of the driving gear (305), the rack plate (301) and the connecting rod (302), and the open end of (4) is closed by the end cover plate (204); S2, starting the second drive motor (205) to work, the output end of the second drive motor (205) drives the stirring shaft (201) to rotate, so that the asphalt raw material inside the processing cylinder (4) is fully stirred by the multiple first stirring rods (202) on the stirring shaft (201); S3, the surfactant type warm mix agent and other additives are put into the connecting pipe (103), so that the additives are delivered to the inside of the material sprinkling barrel (101) through the connecting pipe (103), and the first driving motor (107) is started to work, and the output end of the first driving motor (107) drives the second gear (106) to rotate, so that the second gear (106) and the first gear (105) cooperate to drive the connecting pipe (103) and the material sprinkling barrel (101) to rotate rapidly, so that the additives in the material sprinkling barrel (101) are dispersed and evenly sprinkled through the multiple discharge ports (102) into the asphalt raw material that is constantly stirred in the processing barrel (4), so that the additives and the asphalt raw material are quickly and evenly mixed and stirred; S4. When it is necessary to take out the material that has been stirred inside the processing cylinder (4), the third driving motor (8) drives the driving gear (305) to rotate, thereby driving the end cover plate (204) to move away from the open end of the processing cylinder (4) through the cooperation of the driving gear (305), the rack plate (301) and the connecting rod (302), thereby moving the stirring shaft rod (201), the first stirring rod (202) and the second stirring rod (203) out of the processing cylinder (4), thereby facilitating the cleaning of the first stirring rod (202) and the second stirring rod (203). At the same time, the stirring shaft rod (201) synchronously drives the scraper plate (303) to move inside the processing cylinder (4), thereby pushing the material inside the processing cylinder (4) out through the moving scraper plate (303), thereby forming automatic discharging, and scraping off the material adhering to the inner wall of the processing cylinder (4) through the provided scraper plate (303).

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