Asphalt aggregate drying cylinder

Abstract

The utility model provides an asphalt aggregate drying cylinder which comprises a cylinder body, a buffer piece is arranged in the cylinder body, the buffer piece comprises two mounting plates and a first connecting rod connected with the two mounting plates, the axial direction of the first connecting rod is parallel to the axial direction of the cylinder body, and the first connecting rod is detachably connected with the inner wall of the cylinder body. At least three V-shaped plates are arranged between the two mounting plates, the V-shaped plates are sequentially connected end to end to define a star shape, penetrating meshes are formed in the V-shaped plates respectively, the meshes are located at the connecting positions of every two adjacent V-shaped plates, through holes are formed in the mounting plates respectively, and the through holes are communicated with the space defined by the V-shaped plates. The technical problem that when an existing drying roller rotates, asphalt aggregate impacts one another, and consequently the situation that the asphalt aggregate adheres to the inner wall of the drying roller is aggravated is solved, and the technical effects that the falling asphalt aggregate is buffered, so that impact among the asphalt aggregate is relieved, and drying of the asphalt aggregate is accelerated are achieved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt processing technology, and in particular to an asphalt aggregate drying cylinder. Background Technology

[0002] The drying drum is one of the main components of asphalt mixture mixing. Its main function is to heat and dry the aggregates and heat them to the temperature required for asphalt mixture.

[0003] Chinese utility model patent CN221077037U discloses a mobile asphalt aggregate dewatering and drying device, including a fixed frame. A feeding box is located on one side of the top of the fixed frame, and a discharging box is located on the other side. A drying drum is installed between the feeding box and the discharging box on the top of the fixed frame. Both ends of the drying drum are inserted into the feeding box and the discharging box, respectively, and the drying drum is rotatably connected to both boxes. An exhaust pipe is located on the top of the feeding box, and a support frame is installed inside the exhaust pipe. A rotating shaft is installed in the middle of the support frame, and a fan blade is connected to the top of the rotating shaft. An air inlet is located on the end face of the drying drum away from the feeding box, and a filter screen is installed inside the air inlet. This mobile asphalt aggregate dewatering and drying device uses the rotating fan blades to draw air from the trough through the filter screen into the drum and discharge it through the exhaust pipe. This allows dust generated during the drying and heating process of the asphalt aggregate to be discharged through the exhaust pipe, thereby reducing the dust concentration inside the drying drum.

[0004] When using the mobile asphalt aggregate dewatering and drying device disclosed in the aforementioned utility model patent, the asphalt aggregate enters the feed box from the feed hopper and then slides into the drying drum along the feed chute. As the drying drum rotates, it gradually moves towards the discharge box, achieving drying and heating of the asphalt aggregate during its movement. However, during the rotation of the drying drum, some asphalt aggregate falls from a higher point to a lower point inside the drum, impacting the asphalt aggregate at the bottom. This causes the asphalt aggregate to be compacted against the inner wall of the drying drum, exacerbating the adhesion of the asphalt aggregate to the inner wall, resulting in increased material loss and increased equipment energy consumption. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an asphalt aggregate drying drum, which solves the problem that the mutual impact of asphalt aggregates causes them to adhere to the inner wall of the drying drum, thus exacerbating the problem.

[0006] According to an embodiment of this utility model, an asphalt aggregate drying cylinder includes a cylinder body. A buffer member is provided inside the cylinder body. The buffer member includes two mounting plates and a first connecting rod connecting the two mounting plates. The axial direction of the first connecting rod is parallel to the axial direction of the cylinder body, and the first connecting rod is detachably connected to the inner wall of the cylinder body. At least three V-shaped plates are provided between the two mounting plates. The V-shaped plates are connected end to end to form a star shape. The V-shaped plates are respectively provided with through-holes, and the through-holes are located at the connection points of two adjacent V-shaped plates. The mounting plates are respectively provided with through holes, and the through holes communicate with the space enclosed by the V-shaped plates.

[0007] Furthermore, the inner wall of the cylinder is provided with a mounting cylinder that cooperates with the first connecting rod, and the mounting cylinder is provided with a slot for the mounting plate to pass through.

[0008] Furthermore, one end of the first connecting rod is provided with a protruding first positioning pin, and the end face of the mounting cylinder is provided with a first positioning hole that cooperates with the first positioning pin.

[0009] Furthermore, it also includes a sealing cap, wherein the end of the mounting cylinder away from the first positioning hole is provided with a first threaded portion, the sealing cap is provided with a second threaded portion that mates with the first threaded portion, and the sealing cap abuts against the end of the first connecting rod away from the first positioning pin.

[0010] Furthermore, the sealing cover is provided with a protruding second positioning pin, and the first connecting rod is provided with a second positioning hole that cooperates with the second positioning pin.

[0011] Furthermore, the inner wall of the mounting cylinder is provided with a protruding positioning strip, and the first connecting rod is provided with a first positioning groove that cooperates with the positioning strip.

[0012] Furthermore, it also includes a material guide, which includes a second connecting rod and a material guide blade disposed on the second connecting rod. The inner wall of the cylinder is provided with a mounting cylinder that cooperates with the second connecting rod. The mounting cylinder is provided with a slot for the material guide blade to pass through, and the material guide blade extends in a direction close to the central axis of the cylinder.

[0013] Furthermore, one end of the second connecting rod is provided with a protruding third positioning pin, and the end face of the mounting cylinder is provided with a first positioning hole that cooperates with the third positioning pin.

[0014] Furthermore, it also includes a sealing cap, wherein the end of the mounting cylinder away from the first positioning hole is provided with a first threaded portion, the sealing cap is provided with a second threaded portion that mates with the first threaded portion, and the sealing cap abuts against the end of the second connecting rod away from the third positioning pin.

[0015] Furthermore, the sealing cover is provided with a protruding second positioning pin, and the second connecting rod is provided with a third positioning hole that cooperates with the second positioning pin.

[0016] Compared with the prior art, this utility model has the following beneficial effects: By adopting a buffer component installed inside the cylinder, the buffer component is installed inside the cylinder through the detachable first connecting rod and the inner wall of the cylinder, and the star-shaped structure formed by the V-shaped plates between the mounting plates is kept stable in the cylinder. When the cylinder rotates, the asphalt aggregate falling from the high point to the low point inside the cylinder will first land on the V-shaped plate, and then slide down the surface of the V-shaped plate to the low point of the cylinder, thereby buffering the falling asphalt aggregate and reducing the impact of the falling asphalt aggregate on the asphalt aggregate at the bottom of the cylinder. During the process of the asphalt aggregate sliding down the V-shaped plate, the hot airflow entering the cylinder enters the space enclosed by the V-shaped plate through the through hole and is blown out from the mesh to contact the asphalt aggregate, thereby accelerating the drying of the asphalt aggregate. This solves the technical problem that the mutual impact of asphalt aggregate when the drying drum rotates exacerbates the problem of asphalt aggregate adhering to the inner wall of the drying drum, and produces the technical effect of buffering the falling asphalt aggregate to reduce the impact between asphalt aggregates and accelerate the drying of asphalt aggregate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an asphalt aggregate drying cylinder according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the buffer component in an asphalt aggregate drying cylinder according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of the inner cylinder of an asphalt aggregate drying cylinder according to an embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of an asphalt aggregate drying cylinder according to an embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of another section of the asphalt aggregate drying cylinder according to an embodiment of the present invention.

[0022] In the above figures: 1. Cylinder; 11. Mounting cylinder; 12. Slot; 13. First positioning hole; 14. First threaded part; 15. Positioning strip; 2. Buffer; 21. Mounting plate; 22. First connecting rod; 23. V-shaped plate; 24. Mesh; 25. Through hole; 26. First positioning pin; 27. Second positioning hole; 28. First positioning groove; 3. Sealing cover; 31. Second threaded part; 32. Second positioning pin; 4. Guide component; 41. Second connecting rod; 42. Guide blade. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 5 As shown in the figure, this utility model embodiment proposes an asphalt aggregate drying cylinder, which is used to turn the asphalt aggregate during the asphalt aggregate drying process to increase the contact area between the asphalt aggregate and the hot airflow, thereby accelerating the drying of the asphalt aggregate.

[0025] Please refer to Figure 1 , Figure 2 and Figure 4 The asphalt aggregate drying cylinder includes a cylinder body 1. A buffer element 2 is provided inside the cylinder body 1. The buffer element 2 includes two mounting plates 21 and a first connecting rod 22 connecting the two mounting plates 21. The axial direction of the first connecting rod 22 is parallel to the axial direction of the cylinder body 1, and the first connecting rod 22 is detachably connected to the inner wall of the cylinder body 1 to install the buffer element 2 inside the cylinder body 1. At least three V-shaped plates 23 are provided between the two mounting plates 21, and the V-shaped plates 23 are connected end-to-end to form a star shape. The asphalt aggregate... Asphalt aggregate falling inside the rotating drying cylinder 1 first contacts the V-shaped plate 23 and then slides down along the V-shaped plate 23. The V-shaped plate 23 is provided with through mesh holes 24, and the mesh holes 24 are located at the connection of two adjacent V-shaped plates 23. The mounting plate 21 is provided with through holes 25, and the through holes 25 are connected to the space enclosed by the V-shaped plates 23. The hot airflow entering the cylinder 1 enters the space enclosed by the V-shaped plates 23 through the through holes 25 and then blows out through the mesh holes 24.

[0026] Specifically, the asphalt aggregate drying cylinder provided in this embodiment buffers the falling asphalt aggregate by setting the buffer member 2 inside the cylinder body 1. This causes the asphalt aggregate falling from a high point to a low point inside the cylinder body 1 to first land on the V-shaped plate 23 and then slide down the surface of the V-shaped plate 23 towards the lower part of the cylinder body 1, thereby reducing the impact of the falling asphalt aggregate on the asphalt aggregate at the bottom of the cylinder body 1. During the sliding process of the asphalt aggregate along the V-shaped plate 23, the hot airflow entering the cylinder body 1 enters the space enclosed by the V-shaped plate 23 through the through hole 25, and then exits through the mesh 24 to contact the asphalt aggregate on the V-shaped plate 23, thereby accelerating the drying of the asphalt aggregate. The asphalt aggregate drying cylinder provided in this embodiment can buffer the falling asphalt aggregate inside the cylinder body 1 to reduce the impact between asphalt aggregates, reduce the amount of asphalt aggregate adhering to the inner wall of the cylinder body 1, and improve the drying efficiency of the asphalt aggregate.

[0027] like Figure 2 and Figure 3As shown, the inner wall of the cylinder 1 is provided with a mounting cylinder 11 that cooperates with the first connecting rod 22, and the mounting cylinder 11 is provided with a slot 12 for the mounting plate 21 to pass through. Inserting the first connecting rod 22 into the mounting cylinder 1 allows the buffer member 2 to be installed into the cylinder 1. Multiple mounting cylinders 11 are spaced apart along the circumference of the inner wall of the cylinder 1, and multiple first connecting rods 22 are arranged between two mounting plates 21, with the first connecting rods 22 arranged axially along the mounting cylinder 11. The one-to-one cooperation between the first connecting rods 22 and the mounting cylinders 11 improves the reliability of the connection between the buffer member 2 and the cylinder 1. After the first connecting rod 22 is inserted into the mounting cylinder 11, the mounting plate 21 passes through the slot 12, preventing the mounting plate 21 from colliding with the mounting cylinder 11.

[0028] In detail, one end of the first connecting rod 22 is provided with a protruding first positioning pin 26, and the end face of the mounting cylinder 11 is provided with a first positioning hole 13 that mates with the first positioning pin 26. With the first positioning pin 26 provided at one end of the first connecting rod 22, after the first connecting rod 22 is inserted into the mounting cylinder 11, the first positioning pin 26 is inserted into the first positioning hole 13 to position the first connecting rod 22, thus keeping the position of the first connecting rod 22 stable within the mounting cylinder 11.

[0029] Please combine Figure 2 , Figure 3 and Figure 5 The asphalt aggregate drying cylinder also includes a sealing cap 3. The end of the mounting cylinder 11 furthest from the first positioning hole 13 is provided with a first threaded portion 14. The sealing cap 3 is provided with a second threaded portion 31 that mates with the first threaded portion 14, and the sealing cap 3 abuts against the end of the first connecting rod 22 furthest from the first positioning pin 26. The sealing cap 3 can be fixed to the end of the mounting cylinder 11 through the engagement of the first threaded portion 14 and the second threaded portion 31. After the first connecting rod 22 is inserted into the mounting cylinder 11, the sealing cap 3 closes the opening of the mounting cylinder 11 and abuts against the first connecting rod 22, thereby fixing the first connecting rod 22 in the mounting cylinder 11. This ensures a reliable connection between the buffer component 2 and the cylinder body 1. When the buffer component 2 needs maintenance or replacement, the sealing cap 3 can be rotated to remove it from the mounting cylinder 11, allowing the first connecting rod 22 to be pulled out of the mounting cylinder 11, and the buffer component 2 to be removed from the cylinder body 1, facilitating maintenance of the asphalt aggregate drying cylinder.

[0030] In this embodiment, the sealing cover 3 is provided with a protruding second positioning pin 32, and the first connecting rod 22 is provided with a second positioning hole 27 that mates with the second positioning pin 32. After the sealing cover 3 is installed to the end of the mounting cylinder 11, the second positioning pin 32 extends into the second positioning hole 27, which can improve the stability of the mating between the sealing cover 3 and the first connecting rod 22.

[0031] Please refer to Figure 2 and Figure 3 The inner wall of the mounting cylinder 11 is provided with a protruding positioning strip 15, and the first connecting rod 22 is provided with a first positioning groove 28 that cooperates with the positioning strip 15. When the first connecting rod 22 is inserted into the mounting cylinder 11, the positioning strip 15 extends into the first positioning groove 28 to limit the first connecting rod 22 installed in the mounting cylinder 11, preventing the first connecting rod 22 from rotating in the mounting cylinder 11 and causing the buffer 2 to shake in the cylinder 1.

[0032] like Figure 1 and Figure 4 As shown, the asphalt aggregate drying cylinder also includes a guide component 4, which includes a second connecting rod 41 and guide blades 42 disposed on the second connecting rod 41. The second connecting rod 41 cooperates with the mounting cylinder 11, and the slot 12 through which the guide blades 42 pass extends towards the central axis of the cylinder 1. The guide component 4 is disposed on the inner wall of the cylinder 1 through the cooperation of the second connecting rod 41 and the mounting cylinder 11. As the cylinder 1 rotates, the guide blades 42 agitate the asphalt aggregate inside the cylinder 1, which further accelerates the drying of the asphalt aggregate.

[0033] Specifically, one end of the second connecting rod 41 is provided with a protruding third positioning pin, which cooperates with the first positioning hole 13. The second connecting rod 41 is positioned by the cooperation of the third positioning pin and the first positioning hole 13, which facilitates the installation of the second connecting rod 41 into the mounting cylinder 11.

[0034] Please combine Figure 1 and Figure 5 The sealing cap 3 abuts against the end of the second connecting rod 41 away from the third positioning pin. After the second connecting rod 41 is inserted into the mounting cylinder 11, the sealing cap 3 is installed at the opening of the mounting cylinder 11 so that the sealing cap 3 abuts against the second connecting rod 41. This keeps the second connecting rod 41 in the mounting cylinder 11, ensuring that the guide member 4 remains in a stable position on the cylinder 1. After the sealing cap 3 is removed, the second connecting rod 41 can be easily pulled out of the mounting cylinder 1, thus facilitating the removal and replacement of the guide member 4 from the cylinder 1.

[0035] In detail, the second connecting rod 41 has a third positioning hole at the end away from the third positioning pin, and the third positioning hole cooperates with the second positioning pin 32. After the sealing cover 3 is installed to the end of the mounting cylinder 11, the second positioning pin 32 on the sealing cover 3 is inserted into the third positioning hole, which helps to improve the stability of the cooperation between the sealing cover 3 and the second connecting rod 41.

[0036] like Figure 3 and Figure 4 As shown, the second connecting rod 41 is provided with a second positioning groove, which cooperates with the positioning strip 15. By providing the second positioning groove on the second connecting rod 41 and cooperating with the positioning strip 15 inside the mounting cylinder 11, the rotation of the second connecting rod 41 inside the mounting cylinder 11 is restricted, so that the position of the guide blade 42 on the cylinder 1 remains stable during the contact between the guide blade 42 and the asphalt aggregate, ensuring that the asphalt aggregate inside the cylinder 1 is fully turned over by the guide blade 42 and comes into contact with the hot airflow blown into the cylinder 1.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An asphalt aggregate drying drum comprising a drum body, characterised in that: The inner wall of the barrel is provided with a mounting cylinder matched with the first connecting rod, and the mounting cylinder is provided with a slot for the mounting plate to pass through.

2. An asphalt aggregate drying cylinder as claimed in claim 1 wherein: One end of the first connecting rod is provided with a protruding first positioning pin, and the end face of the mounting cylinder is provided with a first positioning hole matched with the first positioning pin.

3. An asphalt aggregate drying cylinder as claimed in claim 2, characterised in that: The mounting cylinder is provided with a first threaded portion at the end away from the first positioning hole, the sealing cover is provided with a second threaded portion matched with the first threaded portion, and the sealing cover abuts against the end of the first connecting rod away from the first positioning pin.

4. An asphalt aggregate drying cylinder as claimed in claim 3 wherein: The sealing cover is provided with a protruding second positioning pin, and the first connecting rod is provided with a second positioning hole matched with the second positioning pin.

5. An asphalt aggregate drying cylinder as claimed in claim 4 wherein: The inner wall of the mounting cylinder is provided with a protruding positioning strip, and the first connecting rod is provided with a first positioning groove matched with the positioning strip.

6. An asphalt aggregate drying cylinder as defined in claim 2 wherein: The mounting cylinder is provided with a first threaded portion at the end away from the first positioning hole, the sealing cover is provided with a second threaded portion matched with the first threaded portion, and the sealing cover abuts against the end of the first connecting rod away from the first positioning pin.

7. An asphalt aggregate drying cylinder as in claim 1 wherein: The sealing cover is provided with a protruding second positioning pin, and the first connecting rod is provided with a second positioning hole matched with the second positioning pin.

8. An asphalt aggregate drying cylinder as claimed in claim 7, characterised in that: The inner wall of the mounting cylinder is provided with a protruding positioning strip, and the first connecting rod is provided with a first positioning groove matched with the positioning strip.

9. An asphalt aggregate drying cylinder as claimed in claim 8 wherein: The mounting cylinder is provided with a first threaded portion at the end away from the first positioning hole, the sealing cover is provided with a second threaded portion matched with the first threaded portion, and the sealing cover abuts against the end of the first connecting rod away from the first positioning pin.

10. An asphalt aggregate drying cylinder as claimed in claim 9, characterised in that: The sealing cover is provided with a protruding second positioning pin, and the first connecting rod is provided with a second positioning hole matched with the second positioning pin. The inner wall of the mounting cylinder is provided with a protruding positioning strip, and the first connecting rod is provided with a first positioning groove matched with the positioning strip.

Images