Mixing device based on modified asphalt concrete production

Abstract

The utility model relates to the technical field of modified asphalt concrete production, in particular to a mixing device based on modified asphalt concrete production, which can uniformly wrap a layer of asphalt on the surface of an aggregate and then add a modifier by arranging the device and premixing asphalt and the aggregate. Therefore, the modifier can be more easily and uniformly distributed in the whole mixture, and the modifier can be uniformly added into the mixture, so that the production quality of the asphalt concrete is improved; comprising a mixing barrel, a discharge valve, a first motor, a hollow shaft, a plurality of groups of hollow stirring rods, a feeding pipe, a rotary joint, a first control valve and a premixing device, the front ends of the plurality of groups of hollow stirring rods are communicated with a plurality of groups of nozzles, and the output end of the feeding pipe penetrates through the left side of the top end of the mixing barrel and is connected with the upper part of the hollow shaft through the rotary joint; the first control valve is mounted on the upper side of the feeding pipe; the premixing device is mounted on the right side of the top end of the mixing barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of modified asphalt concrete production, in particular to a mixing device based on the production of modified asphalt concrete. Background Art

[0002] Modified asphalt concrete is a building material that improves the performance of traditional asphalt concrete by adding modifiers. The addition of modifiers can enhance the mechanical properties, durability and other physical properties of asphalt mixtures, making them more suitable for use in specific road projects.

[0003] During the production process of modified asphalt concrete, a mixing device is required to mix aggregate, asphalt and modifier. However, the existing mixing device has the problem of uneven modifier addition, which affects the production quality of asphalt concrete. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a mixing device based on the production of modified asphalt concrete, which can pre-mix asphalt and aggregate by setting up this equipment, first allowing the surface of the aggregate to be evenly coated with a layer of asphalt, and then adding the modifier. This makes it easier to evenly distribute the modifier in the entire mixture, and the modifier can be evenly added to the mixture, thereby improving the production quality of asphalt concrete.

[0005] The utility model discloses a mixing device based on the production of modified asphalt concrete, comprising a mixing barrel, a discharge valve, a first motor, a hollow shaft, multiple groups of hollow stirring rods, a feed pipe, a rotary joint, a first control valve and a premixing device. Four groups of legs are provided at the bottom of the mixing barrel, a discharge pipe is connected to the right side of the bottom of the mixing barrel, the discharge valve is installed on the discharge pipe, the first motor is installed in the middle of the top of the mixing barrel, the hollow shaft is rotatably installed at the bottom end of the mixing barrel, the output end of the first motor passes through the top of the mixing barrel and is connected to the top of the hollow shaft, the multiple groups of hollow stirring rods are respectively installed on the hollow shaft and are connected thereto, the front ends of the multiple groups of hollow stirring rods are all connected to multiple groups of nozzles, the output end of the feed pipe passes through the left side of the top of the mixing barrel and is connected to the upper part of the hollow shaft through a rotary joint, the first control valve is installed on the upper side of the feed pipe, and the premixing device is installed on the right side of the top of the mixing barrel.

[0006] Preferably, the premixing device includes a premixing box, four groups of pillars, two groups of second control valves, a second motor, a rotating shaft, a material guide pipe and a material guide valve. The premixing box is installed on the right side of the top of the mixing barrel through the four groups of pillars. The left and right sides of the top of the premixing box are connected with feeding pipes. The two groups of second control valves are respectively installed on the two groups of feeding pipes. The second motor is installed in the middle of the top of the premixing box. The rotating shaft is rotatably installed at the top of the premixing box. The output end of the second motor passes through the top of the premixing box and is connected to the top of the rotating shaft. Multiple groups of stirring blades are provided on the rotating shaft. The input end of the material guide pipe is connected to the middle of the bottom end of the premixing box, the output end of the material guide pipe is connected to the right side of the top of the mixing barrel, and the material guide valve is installed on the material guide pipe.

[0007] Preferably, it also includes a scraping fan blade, which is installed at the bottom of the hollow shaft, and the bottom end of the scraping fan blade is in contact with the bottom end of the mixing barrel.

[0008] Preferably, it also includes a connecting seat, four groups of connecting rods and four groups of scrapers. The connecting seat is installed at the bottom end of the rotating shaft. The four groups of scrapers are respectively installed on the outer end of the connecting seat through four groups of connecting rods. The bottom ends of the four groups of scrapers are slidably connected to the bottom end of the premixing box.

[0009] Preferably, the first control valve and the two groups of second control valves are all quantitative valves.

[0010] Preferably, the four groups of scrapers are arranged at an angle.

[0011] Preferably, the nozzle is configured as a self-sealing nozzle.

[0012] Preferably, the inner wall of the mixing barrel is coated with a polytetrafluoroethylene layer.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the aggregate and asphalt are premixed through a premixing device, and then the mixture is introduced into the interior of the mixing barrel, and then the first control valve is opened, and the modifier is sprayed out from multiple groups of nozzles through the feed pipe, the rotary joint, the hollow shaft and multiple groups of hollow stirring rods, and at the same time the first motor is turned on, the first motor drives the hollow shaft to rotate, and the hollow shaft drives the multiple groups of hollow stirring rods to rotate, and the modifier sprayed from the multiple groups of nozzles is evenly added to the mixture, and the mixture and the modifier are evenly mixed under the stirring of the multiple groups of hollow stirring rods. By setting up this equipment, by premixing asphalt and aggregate, the surface of the aggregate can be evenly coated with a layer of asphalt first, and then the modifier is added, which makes it easier to evenly distribute the modifier in the entire mixture, and the modifier can be evenly added to the mixture, thereby improving the production quality of asphalt concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of A;

[0016] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of B;

[0017] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure of C in the middle;

[0018] Markings in the accompanying drawings: 1. Mixing barrel; 2. Support leg; 3. Discharge pipe; 4. Discharge valve; 5. First motor; 6. Hollow shaft; 7. Hollow stirring rod; 8. Feed pipe; 9. Rotary joint; 10. First control valve; 11. Nozzle; 12. Premixing box; 13. Support; 14. Feeding pipe; 15. Second control valve; 16. Second motor; 17. Rotating shaft; 18. Stirring blade; 19. Guide pipe; 20. Guide valve; 21. Scraper fan blade; 22. Connecting seat; 23. Connecting rod; 24. Scraper. DETAILED DESCRIPTION

[0019] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] like Figures 1 to 4 As shown, the utility model is a mixing device based on the production of modified asphalt concrete, including a mixing barrel 1, a discharge valve 4, a first motor 5, a hollow shaft 6, multiple groups of hollow stirring rods 7, a feeding pipe 8, a rotary joint 9, a first control valve 10 and a premixing device. The bottom end of the mixing barrel 1 is provided with four groups of legs 2, the right side of the bottom end of the mixing barrel 1 is connected with a discharge pipe 3, the discharge valve 4 is installed on the discharge pipe 3, the first motor 5 is installed in the middle of the top end of the mixing barrel 1, the hollow shaft 6 is rotatably installed at the bottom end of the mixing barrel 1, the output end of the first motor 5 passes through the top of the mixing barrel 1 and is connected to the top of the hollow shaft 6, the multiple groups of hollow stirring rods 7 are respectively installed on the hollow shaft 6 and are connected thereto, the front ends of the multiple groups of hollow stirring rods 7 are all connected with multiple groups of nozzles 11, the output end of the feeding pipe 8 passes through the left side of the top end of the mixing barrel 1 and is connected to the upper part of the hollow shaft 6 through the rotary joint 9, the first control valve 10 is installed on the upper side of the feeding pipe 8, and the premixing device is installed on the right side of the top end of the mixing barrel 1;

[0021] Aggregate and asphalt are premixed through a premixing device, and then the mixture is introduced into the mixing barrel 1. Then, the first control valve 10 is opened, and the modifier is sprayed out from the multiple nozzles 11 through the feed pipe 8, the rotary joint 9, the hollow shaft 6 and the multiple sets of hollow stirring rods 7. At the same time, the first motor 5 is turned on, and the first motor 5 drives the hollow shaft 6 to rotate, and the hollow shaft 6 drives the multiple sets of hollow stirring rods 7 to rotate. The modifier sprayed from the multiple nozzles 11 is evenly added to the mixture, and the mixture and the modifier are evenly mixed under the stirring of the multiple sets of hollow stirring rods 7. By setting up this equipment, by premixing asphalt and aggregate, the surface of the aggregate can be evenly coated with a layer of asphalt, and then the modifier is added. This makes it easier to evenly distribute the modifier in the entire mixture, and the modifier can be evenly added to the mixture, thereby improving the production quality of asphalt concrete.

[0022] As a preferred embodiment of the above embodiment, the premixing device includes a premixing box 12, four groups of pillars 13, two groups of second control valves 15, a second motor 16, a rotating shaft 17, a guide pipe 19 and a guide valve 20. The premixing box 12 is installed on the right side of the top of the mixing barrel 1 through the four groups of pillars 13. The left and right sides of the top of the premixing box 12 are connected to the feeding pipe 14. The two groups of second control valves 15 are respectively installed on the two groups of feeding pipes 14. The second motor 16 is installed in the middle of the top of the premixing box 12. The rotating shaft 17 is rotatably installed in the top of the premixing box 12. The output end of the second motor 16 passes through the top of the premixing box 12 and is connected to the top of the rotating shaft 17. Multiple groups of stirring blades 18 are provided on the rotating shaft 17. The input end of the guide pipe 19 is connected to the middle of the bottom end of the premixing box 12, and the output end of the guide pipe 19 is connected to the right side of the top of the mixing barrel 1. The guide valve 20 is installed on the guide pipe 19;

[0023] By arranging a premixing box 12, a support 13, a feeding pipe 14, a second control valve 15, a second motor 16, a rotating shaft 17, a stirring blade 18, a guide pipe 19 and a guide valve 20, by opening two sets of second control valves 15, the aggregate and asphalt are respectively introduced into the interior of the premixing box 12 through the two sets of feeding pipes 14, and then the second motor 16 is turned on, and the second motor 16 drives the rotating shaft 17 and multiple sets of stirring blades 18 to rotate, and the multiple sets of stirring blades 18 stir and premix the aggregate and asphalt, and then the guide valve 20 is opened, and the mixture is introduced into the interior of the mixing barrel 1 through the guide pipe 19, so that the asphalt and aggregate can be premixed, so that the asphalt and aggregate are better combined, and the stability and durability of the mixture are improved.

[0024] As a preferred embodiment of the above embodiment, it further includes a scraping blade 21, which is installed at the bottom of the hollow shaft 6, and the bottom end of the scraping blade 21 contacts the bottom end of the mixing barrel 1;

[0025] By providing the scraping blades 21 , not only can the mixture and modifier at the bottom of the mixing barrel 1 be stirred to improve the production quality of the asphalt concrete, but also the mixed asphalt concrete can be easily discharged through the discharge pipe 3 .

[0026] As a preferred embodiment of the above, it also includes a connecting base 22, four groups of connecting rods 23 and four groups of scrapers 24. The connecting base 22 is mounted on the bottom end of the rotating shaft 17. The four groups of scrapers 24 are respectively mounted on the outer ends of the connecting base 22 through the four groups of connecting rods 23. The bottom ends of the four groups of scrapers 24 are slidably connected to the bottom end of the premixing box 12.

[0027] The connection seat 22 , the connection rod 23 and the scraper 24 are provided, which not only support the rotating shaft 17 but also facilitate scraping and stirring the raw materials accumulated at the bottom of the premixing box 12 .

[0028] As a preference of the above embodiment, the first control valve 10 and the two groups of second control valves 15 are both quantitative valves;

[0029] Facilitates precise control of the dosage of aggregate, asphalt and modifiers.

[0030] As a preferred embodiment of the above, the four groups of scrapers 24 are arranged obliquely;

[0031] The material can be guided to gather toward the center, making it easier to discharge through the material guide pipe 19.

[0032] As a preference of the above embodiment, the nozzle 11 is configured as a self-sealing nozzle;

[0033] After the nozzle 11 has quantitatively discharged the modifier, the mechanical structure inside the nozzle 11 will automatically close the nozzle to prevent the material from flowing out.

[0034] As a preferred embodiment of the above, the inner wall of the mixing barrel 1 is coated with a polytetrafluoroethylene layer;

[0035] Polytetrafluoroethylene has extremely high chemical corrosion resistance and is almost unaffected by any chemical substances. Its surface is extremely smooth and has a very low coefficient of friction, making it difficult for materials to adhere.

[0036] The utility model is a mixing device based on the production of modified asphalt concrete. When it is working, the two groups of second control valves 15 are first opened, and the aggregate and asphalt are respectively introduced into the premixing box 12 through the two groups of feeding pipes 14, and then the second motor 16 is turned on. The second motor 16 drives the rotating shaft 17 and the multiple groups of stirring blades 18 to rotate, and the multiple groups of stirring blades 18 stir and premix the aggregate and asphalt. Then, the guide valve 20 is opened, and the mixture is introduced into the mixing barrel 1 through the guide pipe 19. Then, the first control valve 10 is opened, and the modifier is sprayed out by the multiple groups of nozzles 11 through the feeding pipe 8, the rotary joint 9, the hollow shaft 6 and the multiple groups of hollow stirring rods 7. At the same time, the first motor 5 is turned on, and the first motor 5 drives the hollow shaft 6 to rotate. The hollow shaft 6 drives the multiple groups of hollow stirring rods 7 to rotate. The modifier sprayed by the multiple groups of nozzles 11 is evenly added to the mixture. Under the stirring of the multiple groups of hollow stirring rods 7, the mixture and the modifier are evenly mixed.

[0037] The utility model is a mixing device based on the production of modified asphalt concrete, and its installation method, connection method or setting method are all common mechanical methods, which can be implemented as long as they can achieve their beneficial effects; the utility model is a mixing device based on the production of modified asphalt concrete, and the first motor 5 and the second motor 16 are purchased on the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A mixing device based on the production of modified asphalt concrete, characterized in that: The invention comprises a mixing barrel (1), a discharge valve (4), a first motor (5), a hollow shaft (6), a plurality of hollow stirring rods (7), a feed pipe (8), a rotary joint (9), a first control valve (10) and a premixing device. The bottom end of the mixing barrel (1) is provided with four groups of legs (2). The right side of the bottom end of the mixing barrel (1) is connected to a discharge pipe (3). The discharge valve (4) is installed on the discharge pipe (3). The first motor (5) is installed in the middle of the top end of the mixing barrel (1). The hollow shaft (6) is rotatably installed on the inner bottom of the mixing barrel (1). The output end of the first motor (5) passes through the top of the mixing barrel (1) and is connected to the top of the hollow shaft (6). Multiple groups of hollow stirring rods (7) are respectively installed on the hollow shaft (6) and are connected thereto. The front ends of the multiple groups of hollow stirring rods (7) are all connected to multiple groups of nozzles (11). The output end of the feed pipe (8) passes through the left side of the top of the mixing barrel (1) and is connected to the upper part of the hollow shaft (6) through the rotary joint (9). The first control valve (10) is installed on the upper side of the feed pipe (8). The premixing device is installed on the right side of the top of the mixing barrel (1).

2. A mixing device based on modified asphalt concrete production according to claim 1, characterized in that: The premixing device includes a premixing box (12), four groups of pillars (13), two groups of second control valves (15), a second motor (16), a rotating shaft (17), a material guide pipe (19) and a material guide valve (20). The premixing box (12) is installed on the right side of the top of the mixing barrel (1) through the four groups of pillars (13). The left and right sides of the top of the premixing box (12) are both connected and provided with a feeding pipe (14). The two groups of second control valves (15) are respectively installed on the two groups of feeding pipes (14). The second motor (1 6) is installed in the middle of the top of the premixing box (12), the rotating shaft (17) is rotatably installed in the top of the premixing box (12), the output end of the second motor (16) passes through the top of the premixing box (12) and is connected to the top of the rotating shaft (17), a plurality of stirring blades (18) are provided on the rotating shaft (17), the input end of the guide pipe (19) is connected to the middle of the bottom end of the premixing box (12), the output end of the guide pipe (19) is connected to the right side of the top of the mixing barrel (1), and the guide valve (20) is installed on the guide pipe (19).

3. A mixing device based on modified asphalt concrete production according to claim 2, characterized in that: It also includes a scraping fan blade (21), which is installed at the bottom of the hollow shaft (6), and the bottom end of the scraping fan blade (21) is in contact with the bottom end of the mixing barrel (1).

4. A mixing device based on modified asphalt concrete production according to claim 3, characterized in that: The invention also includes a connecting seat (22), four groups of connecting rods (23) and four groups of scrapers (24), wherein the connecting seat (22) is mounted on the bottom end of the rotating shaft (17), and the four groups of scrapers (24) are respectively mounted on the outer end of the connecting seat (22) through the four groups of connecting rods (23), and the bottom ends of the four groups of scrapers (24) are slidably connected to the inner bottom end of the premixing box (12).

5. A mixing device based on modified asphalt concrete production according to claim 4, characterized in that: The first control valve (10) and the two sets of second control valves (15) are both quantitative valves.

6. A mixing device based on modified asphalt concrete production according to claim 5, characterized in that: The four groups of scrapers (24) are arranged at an angle.

7. A mixing device based on modified asphalt concrete production according to claim 6, characterized in that: The nozzle (11) is configured as a self-sealing nozzle.

8. A mixing device based on modified asphalt concrete production according to claim 7, characterized in that: The inner wall of the mixing barrel (1) is coated with a polytetrafluoroethylene layer.

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