Modified asphalt adding device

Abstract

The utility model belongs to the technical field of modified asphalt processing, and particularly relates to a modified asphalt adding device which comprises a modified material adding mechanism, the modified material adding mechanism comprises a plurality of material adding bins, crushing bins are arranged at the bottoms of the material adding bins, frosted surfaces are arranged on the inner walls of the crushing bins, and two crushing and grinding rollers are rotationally connected into the crushing bins; a plurality of material adding bins are arranged in a surrounding mode, a second connecting block is installed between two of the material adding bins, a first connecting block is installed between the other two material adding bins, and a bevel gear transmission part is installed in the first connecting block. Extension shafts are arranged at the two ends of one crushing and grinding roller, and the extension shafts of the two crushing and grinding rollers stretching into the first connecting block are connected through a bevel gear transmission part. According to the utility model, a powdery material can be crushed before being added into stirring equipment, so that the caked material is ground into powder, the blockage is avoided, and the stirring uniformity of modified asphalt can be ensured.

Description

Technical Field

[0001] This utility model belongs to the field of modified asphalt processing technology, specifically relating to a modified asphalt additive device. Background Technology

[0002] Modified asphalt refers to an asphalt material whose physical and chemical properties are improved by adding specific modifiers (such as polymers, rubber, resins, etc.) to ordinary petroleum asphalt. This treatment can significantly improve the performance of asphalt in terms of high-temperature deformation resistance, low-temperature crack resistance, aging resistance, and durability, making it more suitable for complex climates and heavy traffic conditions. The specific modifiers added to modified asphalt are mostly in powder form, and the material is prone to clumping due to moisture. During the addition process, clumping can easily cause blockages, and adding clumped material directly to the mixing equipment can also easily lead to uneven mixing. Utility Model Content

[0003] The purpose of this invention is to provide a modified asphalt additive device that can crush powdered materials before adding them to the mixing equipment, grind lumpy materials into powder, avoid clogging, and ensure the uniformity of the modified asphalt mixing.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] A modified asphalt addition device includes a modified material adding mechanism, which includes several material adding chambers. A crushing chamber is provided at the bottom of each material adding chamber. The inner wall of the crushing chamber is provided with a frosted surface. Two crushing and grinding rollers are rotatably connected inside the crushing chamber.

[0006] Several material adding chambers are arranged in an encircling shape, with a second connecting block installed between two of the material adding chambers and a first connecting block installed between the other two material adding chambers. A bevel gear transmission component is installed inside the first connecting block.

[0007] One of the crushing and grinding rollers is provided with an extension shaft at both ends. The extension shafts of the two crushing and grinding rollers that extend into the first connecting block are connected by a bevel gear transmission component. The extension shaft of one of the crushing and grinding rollers that extends into the second connecting block is connected to the output end of the transmission motor, and the extension shaft of the other crushing and grinding roller that extends into the second connecting block is rotatably connected to the second connecting block.

[0008] A mounting rack is installed on the outside of the modified material adding mechanism, and the mounting rack is used to assemble the modified material adding mechanism and the mixing equipment.

[0009] Furthermore, the two crushing and grinding rollers are provided with meshing teeth at both ends, and the two crushing and grinding rollers are meshed and connected.

[0010] Furthermore, a powder discharge trough is provided at the bottom of the material addition chamber, the powder discharge trough is located between two crushing and grinding rollers, and powder scrapers are fixed on both sides of the powder discharge trough, with the top of the powder scrapers contacting the outer surface of the crushing and grinding rollers.

[0011] Furthermore, a material storage box is fixed to the bottom of the material addition chamber, the material storage box is located directly below the powder discharge trough, an addition pipe is fixed to the bottom of the material storage box, and a powder flow meter is installed on the outside of the addition pipe.

[0012] Furthermore, the mounting frame includes a hopper support plate, which has several mounting holes. The material adding hopper is installed in the mounting holes. Several support plates are fixed on the outside of the hopper support plate. An extension support frame is slidably installed on one end of the support plate, and a mounting slot is provided on one end of the extension support frame.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This invention achieves synchronous reverse rotation of multiple crushing and grinding rollers through bevel gear transmission components. Combined with the double squeezing action of meshing teeth and the grinding chamber wall, it effectively grinds agglomerated materials into uniform powder. During the crushing process, the powder scraper cleans the roller surface of the adhering material in real time to avoid residual blockage of the powder discharge trough, ensuring the uniformity of powder particle size and providing a uniform material basis for subsequent asphalt mixing.

[0015] This utility model adopts a split material addition bin and hanging rack design, which supports independent storage and synchronous feeding of multiple types of modified materials. The material temporary storage box, together with the powder flow meter, realizes closed-loop control of the feeding amount, significantly reducing the error rate. The extended sliding adjustment function of the support frame makes the device adaptable to different specifications of mixing equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the mounting bracket of this utility model;

[0018] Figure 3 A schematic diagram of the structure of the modified material addition mechanism of this utility model;

[0019] Figure 4 A partial cross-sectional structural diagram of the modified material addition mechanism of this utility model;

[0020] Figure 5 A top-view cross-sectional structural diagram of the modified material addition mechanism of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Modified material adding mechanism; 2. Hanging rack; 3. Powder scraper; 11. Material adding bin; 12. Material temporary storage box; 13. Adding pipe; 14. Powder flow meter; 15. First connecting block; 16. Second connecting block; 17. Crushing and grinding roller; 18. Bevel gear transmission component; 19. Drive motor; 21. Hopper support plate; 22. Support plate; 23. Extension support frame. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figures 1 to 5 As shown, a modified asphalt addition device includes a modified material adding mechanism 1, which includes several material adding chambers 11. A crushing chamber is provided at the bottom of the material adding chamber 11. The inner wall of the crushing chamber is provided with a frosted surface. Two crushing and grinding rollers 17 are rotatably connected inside the crushing chamber.

[0025] Several material adding chambers 11 are arranged in an encircling shape, with a second connecting block 16 installed between two material adding chambers 11 and a first connecting block 15 installed between the other two material adding chambers 11. A bevel gear transmission component 18 is installed inside the first connecting block 15.

[0026] One of the crushing and grinding rollers 17 has an extension shaft at both ends. The extension shafts of the two crushing and grinding rollers 17 that extend into the first connecting block 15 are connected by a bevel gear transmission component 18. The extension shaft of one of the crushing and grinding rollers 17 that extends into the second connecting block 16 is connected to the output end of the drive motor 19, and the extension shaft of the other crushing and grinding roller 17 that extends into the second connecting block 16 is rotatably connected to the second connecting block 16.

[0027] Mounting rack 2 is installed on the outside of the modified material adding mechanism 1. Mounting rack 2 is used to assemble the modified material adding mechanism 1 and the mixing equipment.

[0028] In the above-mentioned process, the modified material adding mechanism 1 is assembled onto the modified asphalt mixing equipment via the mounting bracket 2. Several material adding bins 11 contain different types of additives. When the additives are added into the mixing equipment, the extension shaft connected to it is rotated by the drive motor 19, which in turn rotates the crushing and grinding roller 17 fixed to the extension shaft. When the crushing and grinding roller 17 rotates, it drives the adjacent crushing and grinding roller 17 to rotate through the meshing of the bevel gear transmission component 18, so that all the crushing and grinding rollers 17 rotate simultaneously. During the rotation, the material on the crushing and grinding roller 17 is crushed and broken by the abrasive surface between the two crushing and grinding rollers 17 and the inner wall of the crushing bin, so that the clumped material is crushed back into powder and added to the mixing equipment, which is more convenient for subsequent uniform mixing.

[0029] Please refer to the following: Figure 4 and Figure 5 As shown, the two crushing and grinding rollers 17 are provided with meshing teeth at both ends, and the two crushing and grinding rollers 17 are meshed and connected.

[0030] In the above, when one of the crushing and grinding rollers 17 rotates, the two crushing and grinding rollers 17 rotate in opposite directions through the meshing transmission of two meshing teeth. The material above the crushing and grinding roller 17 is crushed by the two crushing and grinding rollers 17, breaking the agglomerated material into powder, which is more convenient for subsequent uniform mixing.

[0031] Please refer to it again. Figure 4 As shown, a powder discharge trough is provided at the bottom of the material addition chamber 11. The powder discharge trough is located between two crushing and grinding rollers 17. Powder scrapers 3 are fixed on both sides of the powder discharge trough, and the top of the powder scrapers 3 contacts the outer surface of the crushing and grinding rollers 17.

[0032] In the above, the powder discharge trough is used to convey the crushed powdered material to the mixing equipment, and the top of the powder scraper 3 is attached to the surface of the crushing and grinding roller 17. When the crushing and grinding roller 17 rotates, it can scrape off the material adhering to the surface of the crushing and grinding roller 17, so as to avoid material residue on the surface of the crushing and grinding roller 17 causing blockage. At the same time, the bottom of the powder scraper 3 is hollow, and when the crushing and grinding roller 17 rotates in the opposite direction, the powder scraped off will fall from below the powder discharge trough along the bottom of the crushing chamber.

[0033] Please refer to it again. Figure 3 As shown, a material storage box 12 is fixed to the bottom of the material adding bin 11. The material storage box 12 is located directly below the powder discharge trough. An adding pipe 13 is fixed to the bottom of the material storage box 12. A powder flow meter 14 is installed on the outside of the adding pipe 13.

[0034] In the above, the powdered material crushed by the crushing and grinding roller 17 can be temporarily stored in the material storage box 12 through the powder discharge trough. When it is necessary to add material, the total amount of material added is precisely controlled by the powder flow meter 14 and added to the mixing equipment through the bottom of the adding pipe 13.

[0035] Please refer to it again. Figure 2 As shown, the mounting frame 2 includes a hopper support plate 21, which has several mounting holes. The material adding hopper 11 is installed in the mounting holes. Several support plates 22 are fixed on the outside of the hopper support plate 21. An extension support frame 23 is slidably installed on one end of the support plate 22. A mounting slot is provided on one end of the extension support frame 23.

[0036] As described above, when the device is installed on the asphalt mixing equipment, several extension support frames 23 are slid to extend the support plate 22 and the extension support frame 23, and the mounting slot at one end of the extension support frame 23 is mounted on the edge of the mixing equipment, so that the modified material adding mechanism 1 can be positioned above the mixing equipment, which facilitates the addition of modified materials.

[0037] The working principle of this utility model is as follows: the length of the modified material adding mechanism 1 is adjusted by the support plate 22 and the extension support frame 23 of the mounting frame 2, and the entire modified material adding mechanism 1 is fixed above the asphalt mixing equipment to ensure that the material adding bin 11 is aligned with the mixing equipment. Multiple material adding bins 11 can store different types of modified materials. The drive motor 19 drives a crushing and grinding roller 17 to rotate. The adjacent crushing and grinding rollers 17 are rotated through the bevel gear transmission component 18 and the meshing teeth to crush the agglomerated material and form a uniform powder. The crushed powder falls into the material temporary storage box 12 through the powder discharge trough. The bottom adding pipe 13 monitors and controls the powder feeding amount in real time through the powder flow meter 14. The powder is quantitatively transported to the mixing equipment through the adding pipe 13 to ensure that the modified material and asphalt are uniformly mixed.

[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A modified asphalt adding device characterized by: Including modified material adding mechanism (1), the modified material adding mechanism (1) includes several material adding bins (11), the bottom of material adding bin (11) is provided with broken bin, the inner wall of broken bin is equipped with frosted surface, two broken grinding rollers (17) are rotatably connected inside broken bin; Several material adding bins (11) are arranged in a surrounding manner, two material adding bins (11) are provided with second connecting blocks (16), and the remaining two material adding bins (11) are provided with first connecting blocks (15), the inside of first connecting block (15) is provided with bevel gear transmission (18); The two ends of one of the broken grinding rollers (17) are provided with extension shafts, the extension shafts of the two broken grinding rollers (17) extending into the inside of the first connecting block (15) are connected through the bevel gear transmission (18), the extension shaft of one of the broken grinding rollers (17) extending into the inside of the second connecting block (16) is connected with the output end of the transmission motor (19), and the extension shaft of the other broken grinding roller (17) extending into the inside of the second connecting block (16) is rotatably connected with the second connecting block (16). A hanging rack (2) is installed outside the modified material adding mechanism (1), and the hanging rack (2) is used for assembling the modified material adding mechanism (1) and the stirring equipment.

2. The modified bitumen adding device of claim 1, wherein: The two ends of the two broken grinding rollers (17) are provided with meshing teeth, and the two broken grinding rollers (17) are connected in meshing mode.

3. The modified bitumen adding device of claim 1, wherein: The bottom of the material adding bin (11) is provided with a powder discharge groove between the two broken grinding rollers (17), and the two sides of the powder discharge groove are fixedly provided with powder scraping plates (3), and the top of the powder scraping plate (3) contacts the outer side surface of the broken grinding roller (17).

4. The modified bitumen adding device of claim 3, wherein: The bottom of the material adding bin (11) is fixedly provided with a material temporary storage box (12), the material temporary storage box (12) is located directly below the powder discharge groove, the bottom of the material temporary storage box (12) is fixedly provided with an adding pipe (13), and the outside of the adding pipe (13) is provided with a powder flow meter (14).

5. The modified bitumen adding device of claim 1, wherein: The hanging rack (2) comprises a bin support plate (21), a plurality of mounting holes are formed in the bin support plate (21), the material adding bin (11) is mounted in the mounting hole, a plurality of support plates (22) are fixedly arranged on the outside of the bin support plate (21), one end of the support plate (22) is slidably provided with an extension support frame (23), and one end of the extension support frame (23) is provided with a hanging clamping groove.

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