Asphalt reclaimed material drying cylinder with heat conduction cylinder
By setting a heat-conducting cylinder on the outer layer of the drying cylinder and combining it with a limiting and locking structure, the problem of asphalt recycled material adhering to the inner wall of the drying cylinder is solved, achieving uniform heat distribution and efficient drying, thereby improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520440076.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The adhesion of recycled asphalt to the inner wall of the drying cylinder leads to a decrease in heat transfer efficiency, uneven heat distribution, and affects drying effect and production efficiency, while also resulting in high energy consumption.
The design incorporates a heat-conducting cylinder. By setting the heat-conducting cylinder on the outer layer of the drying cylinder and providing a limiting and locking structure in the middle section of the inner wall, combined with a spirally arranged heat-conducting ring, uniform heat distribution is ensured. Furthermore, the combination of a three-head hot air nozzle and lifting blades achieves uniform heating and stirring.
It improves heat transfer efficiency, enhances the uniformity of heat distribution, reduces energy consumption, and improves drying quality and production efficiency.
Smart Images
Figure CN223896446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of asphalt recycling technology, specifically an asphalt recycling drying cylinder with a heat-conducting cylinder. Background Technology
[0002] During the operation of asphalt recycling drying cylinders, recycled material tends to adhere to the inner wall of the cylinder, leading to decreased heat transfer efficiency and affecting drying results. Traditional drying cylinders typically use internal heating elements, but these suffer from uneven heat distribution, low thermal efficiency, and high energy consumption. Furthermore, traditional drying cylinders are prone to localized overheating or uneven drying during the drying process, impacting product quality and production efficiency. Utility Model Content
[0003] To address the problems mentioned in the background art, an asphalt recycling drying cylinder with a heat-conducting cylinder is provided, comprising a frame, a drying cylinder, and a drive device for rotating the drying cylinder. The frame is equipped with the drive device, which is connected to the drying cylinder. One end of the drying cylinder has a feed inlet, and the other end has a discharge outlet. A hot air duct is located in the center of the drying cylinder, and three hot air nozzles are evenly spaced on the hot air duct. Lifting blades are provided on the inner wall of the drying cylinder, and a limiting structure is provided in the middle section of the outer wall of the drying cylinder. Both ends of the drying cylinder are bent outward to form slots. A heat-conducting cylinder is provided on the outer layer of the drying cylinder, and a locking structure is provided in the middle section of the inner wall of the heat-conducting cylinder. The two sides of the heat-conducting cylinder are inserted into the slots of the drying cylinder, and the heat-conducting cylinder and the drying cylinder are fixed by fasteners.
[0004] The feed inlet is equipped with a feed valve.
[0005] The lifting blades are evenly arranged along the circumference of the drying cylinder, and the lifting blades form an acute angle with the axis of the drying cylinder.
[0006] The limiting structure and the locking structure have an L-shaped cross-section and abut against each other.
[0007] The inner wall of the heat-conducting cylinder is provided with a heat-conducting ring, which is spirally arranged along the axis of the drying cylinder.
[0008] The drying cylinder has airflow sealing elements at both bent ends.
[0009] Compared with the prior art, this utility model optimizes the structural design, improves heat transfer efficiency, improves the uniformity of heat distribution, and at the same time reduces energy consumption, improves drying quality and production efficiency. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the connection structure between the drying cylinder and the heat-conducting cylinder.
[0012] Figure 3 This is a perspective view of the present utility model;
[0013] See Figures 1 to 2 1. Frame, 2. Drying cylinder, 3. Drive unit, 4. Feed inlet, 5. Discharge outlet, 6. Hot air duct, 7. Three-head hot air nozzle, 8. Lifting blade, 9. Feed valve, 10. Heat conduction cylinder, 11. Limiting structure, 12. Locking structure, 13. Fixing component, 14. Airflow sealing component. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings.
[0015] like Figures 1 to 3 A drying cylinder for recycled asphalt with a heat-conducting cylinder includes a frame 1, a drying cylinder 2, and a drive device 3 for rotating the drying cylinder. The drive device 3 is mounted on the frame 1 and connected to the drying cylinder 2. One end of the drying cylinder 2 has a feed inlet 4, and the other end has a discharge outlet 5. A hot air duct 6 is located in the center of the drying cylinder 2, and three hot air nozzles 7 are evenly spaced on the hot air duct 6. Lifting blades 8 are located on the inner wall of the drying cylinder 2. A limiting structure 11 is located in the middle section of the outer wall of the drying cylinder 2. Both ends of the drying cylinder 2 are bent outwards to form slots. A heat-conducting cylinder 10 is located on the outer layer of the drying cylinder 2. A locking structure 12 is located in the middle section of the inner wall of the heat-conducting cylinder 10. The heat-conducting cylinder 10 is inserted into the slots of the drying cylinder 2 on both sides, and the heat-conducting cylinder 10 and the drying cylinder 2 are fixed by fasteners 13. The flow rate of the three hot air nozzles 7 can be adjusted as needed.
[0016] The feed inlet 4 is equipped with a feed valve 9, which closes and opens the feed and controls the flow rate.
[0017] The lifting blades 8 are evenly arranged along the circumference of the drying cylinder 2, and the lifting blades 8 form an acute angle with the axis of the drying cylinder 2 to improve the mixing efficiency of recycled materials.
[0018] The limiting structure 11 and the locking structure 12 have an L-shaped cross section, and they abut against each other to restrict and strengthen the fixation of the drying cylinder 2 and the heat-conducting cylinder 10.
[0019] The inner wall of the heat-conducting cylinder 10 is equipped with a heat-conducting ring, which is spirally arranged along the axis of the drying cylinder 2. This allows heat to be evenly distributed inside the drying cylinder, ensuring that the asphalt recycling material is fully heated, thereby improving heating efficiency and drying effect.
[0020] The two ends of the drying cylinder 2 are bent and equipped with airflow sealing elements 14 to improve the sealing between the heat conduction cylinder 10 and the inner wall of the drying cylinder 2, so as to prevent heat leakage.
[0021] When in use, open the feed valve, start the drive device to drive the drying cylinder to rotate, connect the hot air pipe 6 to the hot air generator, and blow out hot air from the three hot air nozzles. Control the three hot air nozzles according to the actual heating requirements and the changes in the internal space of the drying cylinder. The recycled material is heated as the drying cylinder rotates, and the lifting blades stir it to complete the heating of the recycled material.
Claims
1. A drying cylinder for recycled asphalt with a heat-conducting cylinder, comprising a frame (1), a drying cylinder (2), and a driving device (3) for driving the drying cylinder to rotate, characterized in that: The frame (1) is provided with a drive device (3), which is connected to the drying cylinder (2). One end of the drying cylinder (2) is provided with a feed inlet (4) and the other end is provided with a discharge outlet (5). A hot air pipe (6) is provided in the center of the drying cylinder (2). Three hot air nozzles (7) are provided at even intervals on the hot air pipe (6). A lifting blade (8) is provided on the inner wall of the drying cylinder (2). A limiting structure (11) is provided in the middle section of the outer wall of the drying cylinder (2). The two ends of the drying cylinder (2) are bent outward to form a slot. A heat-conducting cylinder (10) is provided on the outer layer of the drying cylinder (2). A locking structure (12) is provided in the middle section of the inner wall of the heat-conducting cylinder (10). The two sides of the heat-conducting cylinder (10) are inserted into the slots of the drying cylinder (2). The heat-conducting cylinder (10) and the drying cylinder (2) are fixed by a fixing component (13).
2. The asphalt recycling drying cylinder with a heat-conducting cylinder according to claim 1, characterized in that: The feed inlet (4) is equipped with a feed valve (9).
3. The asphalt recycling drying cylinder with a heat-conducting cylinder according to claim 1, characterized in that: The lifting blades (8) are evenly arranged along the circumference of the drying cylinder (2), and the lifting blades (8) form an acute angle with the axis of the drying cylinder (2).
4. The asphalt recycling drying cylinder with a heat-conducting cylinder according to claim 1, characterized in that: The limiting structure (11) and the locking structure (12) have an L-shaped cross section and abut against each other.
5. The asphalt recycling drying cylinder with a heat-conducting cylinder according to claim 1, characterized in that: The inner wall of the heat-conducting cylinder (10) is provided with a heat-conducting ring, which is spirally arranged along the axis of the drying cylinder (2).
6. The asphalt recycling drying cylinder with a heat-conducting cylinder according to claim 1, characterized in that: The drying cylinder (2) has airflow sealing elements (14) at both ends of the bent ends.