Waste asphalt concrete recycling and drying device
By designing two sets of meshing crushing rollers and a crushing vibration component, the problem of low crushing efficiency in traditional devices is solved, achieving efficient multi-stage crushing and uniform distribution of waste asphalt concrete, thus improving drying efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHUGAN NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional equipment is inefficient when crushing waste asphalt concrete and is prone to material blockage, which affects the normal operation of the equipment.
It employs two sets of meshing crushing rollers and a crushing vibration assembly. Through the rotation of the crushing rollers and the cooperation of the half-gear driving the rack and crushing plate, multi-stage crushing is achieved. The reciprocating oscillation of the bottom plate prevents material accumulation and ensures uniform distribution.
It improves the thoroughness and uniformity of crushing, enhances drying efficiency and quality, prevents material accumulation, and ensures normal equipment operation.
Smart Images
Figure CN224195574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste recycling, and in particular to a waste asphalt concrete recycling and drying device. Background Technology
[0002] Waste asphalt concrete refers to asphalt concrete materials that are milled, excavated, or recycled from old road surfaces during road construction, maintenance, or renovation. It falls under the category of solid waste, but it has high recyclability value.
[0003] With the continuous advancement of highway construction and maintenance projects, the recycling and treatment of waste asphalt concrete has become an important issue for resource recycling and environmental protection. Efficient recycling and drying equipment can not only realize the recycling of waste materials and reduce engineering construction costs, but also reduce the pressure of waste on the environment.
[0004] However, the crushing function of traditional equipment is relatively simple, relying only on simple crushing rollers for grinding, which is difficult to completely crush large pieces of waste asphalt concrete. This leads to low subsequent drying efficiency and is prone to material blockage, affecting the normal operation of the equipment. Therefore, a waste asphalt concrete recycling and drying device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a waste asphalt concrete recycling and drying device, which aims to improve the problem that the existing technology relies solely on simple crushing rollers for compaction, making it difficult to completely break down large pieces of waste asphalt concrete, resulting in low subsequent drying efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a waste asphalt concrete recycling and drying device, including a drying box, a motor fixedly connected to the outer wall of the top of the drying box, a crushing roller fixedly connected to the output shaft of the motor, two sets of crushing rollers, a gear a fixedly connected to the rotation center shaft of the left crushing roller, a gear b fixedly connected to the rotation center shaft of the right crushing roller, a crushing plate a fixedly connected to the inner wall of the top of the drying box, and a crushing vibration component provided on the surface of the gear b;
[0007] The crushing and shaking assembly includes a half gear, the outer wall of which is meshed with a rack, a hinge rod a is hinged to the side wall at the top of the rack, a sliding rod is hinged to the end of the hinge rod a away from the rack, a crushing plate b is fixedly connected to the end of the sliding rod away from the hinge rod a, and a connecting block is elastically connected to the inner side wall of the drying chamber through a return spring, and a guide rod is slidably connected through the inner wall of the connecting block.
[0008] As a further description of the above technical solution:
[0009] A hinge rod b is hinged to the side wall at the bottom end of the rack, and a base plate is hinged to the end of the hinge rod b away from the rack. A discharge door is provided on the side wall at the bottom end of the drying chamber.
[0010] As a further description of the above technical solution:
[0011] The gear b meshes with the gear a, the half gear is fixedly connected to the surface of the gear b, and the two sets of crushing rollers are rotatably connected to the inner side wall of the drying chamber.
[0012] As a further description of the above technical solution:
[0013] The sliding rod passes through and is slidably connected to the inner wall at the top of the drying oven.
[0014] As a further description of the above technical solution:
[0015] One end of the reset spring is fixedly connected to the bottom end of the outer wall of the connecting block, and the other end of the reset spring is fixedly connected to the inner side wall of the drying oven.
[0016] As a further description of the above technical solution:
[0017] Gear a is rotatably connected to the side wall at the top of the drying chamber, and gear b is rotatably connected to the side wall at the top of the drying chamber.
[0018] As a further description of the above technical solution:
[0019] The guide rod is fixedly connected to the inner side wall of the drying oven, and the connecting block is fixedly connected to the outer wall of the rack.
[0020] As a further description of the above technical solution:
[0021] The bottom plate is slidably connected to the inner wall at the bottom of the drying oven.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, two sets of meshing crushing rollers, in conjunction with a crushing vibration component, achieve multi-stage crushing. After the crushing rollers perform initial crushing, the half-gear drives the rack, crushing plate b, and crushing plate a to come closer together and crush large pieces of material, effectively improving the thoroughness and uniformity of crushing.
[0024] 2. In this utility model, the bottom plate reciprocates under the drive of the hinge rod b, which can effectively prevent the accumulation of crushed material, ensure that the material is evenly distributed in the drying chamber, and fully contact the drying heat source, thus greatly improving the drying efficiency and quality. Attached Figure Description
[0025] Figure 1This is a schematic diagram of the overall three-dimensional structure of the waste asphalt concrete recycling and drying device proposed in this utility model.
[0026] Figure 2 This is a rear view schematic diagram of the waste asphalt concrete recycling and drying device proposed in this utility model.
[0027] Figure 3 This is a partial cross-sectional view of the drying box of the waste asphalt concrete recycling and drying device proposed in this utility model.
[0028] Figure 4 This is a three-dimensional structural diagram of the crushing and shaking component of the waste asphalt concrete recycling and drying device proposed in this utility model;
[0029] Figure 5 This is a partial cross-sectional view of the drying box of the waste asphalt concrete recycling and drying device proposed in this utility model.
[0030] Figure 6 The waste asphalt concrete recycling and drying device proposed in this utility model Figure 5 Enlarged structural diagram of section A.
[0031] Legend:
[0032] 1. Drying oven; 2. Unloading door; 3. Motor; 4. Gear a; 5. Gear b; 6. Crushing and shaking assembly; 61. Half gear; 62. Rack; 63. Hinge rod a; 64. Sliding rod; 65. Crushing plate b; 66. Hinge rod b; 67. Base plate; 68. Connecting block; 69. Guide rod; 610. Return spring; 7. Crushing plate a; 8. Crushing roller. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figures 1-3This utility model provides an embodiment of a waste asphalt concrete recycling and drying device, including a drying chamber 1. The drying chamber 1 is existing technology. A discharge door 2 is provided on the side wall at the bottom of the drying chamber 1. By opening the discharge door 2, the recycled and crushed concrete inside the drying chamber 1 can be discharged. A motor 3 is fixedly connected to the outer wall at the top of the drying chamber 1. A crushing roller 8 is fixedly connected to the output shaft of the motor 3. The crushing roller 8 is rotatably connected to the inner side wall of the drying chamber 1. Two sets of crushing rollers 8 are provided. The rotation center shaft of the left crushing roller 8 is fixedly connected to a gear a4, and the rotation center shaft of the right crushing roller 8 is fixedly connected to a gear a4. A gear b5 is fixedly connected to the shaft, and gear b5 meshes with gear a4. Gear a4 is rotatably connected to the side wall at the top of the drying chamber 1, and gear b5 is rotatably connected to the side wall at the top of the drying chamber 1. When the motor 3 drives a set of crushing rollers 8 to rotate, it will drive gear a4 to rotate synchronously. At the same time, when gear a4 rotates, it will mesh with gear b5 to rotate synchronously. When gear b5 rotates, it will also drive crushing rollers 8 to rotate synchronously, so as to crush and recycle waste asphalt concrete. A crushing plate a7 is fixedly connected to the inner wall at the top of the drying chamber 1, and a crushing vibration component 6 is provided on the surface of gear b5.
[0035] Reference Figures 4-6 The crushing and shaking assembly 6 includes a half gear 61, which is fixedly connected to the surface of gear b5. A rack 62 meshes with the outer wall of the half gear 61, and the tooth spacing of the half gear 61 matches that of the rack 62. Rotation of the half gear 61 allows the rack 62 to move up and down. A hinge rod a63 is hinged to the side wall of the top of the rack 62. A sliding rod 64 is hinged to the end of the hinge rod a63 away from the rack 62. The sliding rod 64 passes through and is slidably connected to the inner wall of the top of the drying chamber 1. A crushing plate b65 is fixedly connected to the end of the sliding rod 64 away from the hinge rod a63. When the rack 62 descends, it pushes the hinge rod a63 downward, thereby pushing the sliding rod 64 to move back and forth on the inner wall of the drying chamber 1, thus agitating the crushing and shaking action. Plate b65 and base plate 67 are brought close together to crush large pieces of concrete asphalt. The inner side wall of the drying chamber 1 is elastically connected to a connecting block 68 via a return spring 610. One end of the return spring 610 is fixedly connected to the bottom end of the outer wall of the connecting block 68, and the other end of the return spring 610 is fixedly connected to the inner side wall of the drying chamber 1. The function of the return spring 610 is to automatically reset the position of the connecting block 68 after it descends with the rack 62. A guide rod 69 is slidably connected through the inner wall of the connecting block 68. The guide rod 69 is fixedly connected to the inner side wall of the drying chamber 1. The function of the guide rod 69 is to guide the movement of the return spring 610. The connecting block 68 is fixedly connected to the outer wall of the rack 62.
[0036] Reference Figures 3-4A hinge rod b66 is hinged to the side wall at the bottom end of the rack 62. A base plate 67 is hinged to the end of the hinge rod b66 away from the rack 62. The base plate 67 passes through and is slidably connected to the inner wall at the bottom end of the drying chamber 1. When the hinge rod b66 descends, it pushes the base plate 67 to slide back and forth on the inner wall at the bottom end of the drying chamber 1, thereby allowing the crushed waste asphalt concrete to swing back and forth, thus preventing it from accumulating on one side of the drying chamber 1.
[0037] Working principle: When waste asphalt concrete enters the drying chamber 1, the motor 3 is started. The output shaft of the motor 3 drives the left crushing roller 8 to rotate. Since the gear a4 fixedly connected to the rotation center shaft of the left crushing roller 8 meshes with the gear b5 fixedly connected to the rotation center shaft of the right crushing roller 8, the rotation of gear a4 will drive gear b5 to rotate synchronously in the opposite direction, thereby causing the two sets of crushing rollers 8 to rotate in opposite directions and crush the waste asphalt concrete that has entered the drying chamber 1.
[0038] During the rotation of gear b5, the half gear 61 fixedly connected to its surface rotates accordingly. When the teeth of half gear 61 mesh with rack 62, they push rack 62 downward. When the toothless part of half gear 61 is opposite rack 62, rack 62 returns to its original position under the action of return spring 610. When rack 62 moves up and down, hinge rod a63 at the top hinge pushes sliding rod 64 to move back and forth on the inner wall of the top of drying chamber 1. This causes crushing plate b65 fixed at the other end of sliding rod 64 to move closer to or further away from crushing plate a7 fixed on the inner wall of the top of drying chamber 1. When crushing plate b65 and crushing plate a7 move closer to each other, they can initially crush large pieces of concrete asphalt, enhancing the crushing effect.
[0039] Meanwhile, the hinge rod b66, which is hinged to the bottom end of the rack 62, pushes the bottom plate 67 to slide back and forth on the inner wall of the bottom end of the drying chamber 1 as the rack 62 rises and falls. When the rack 62 descends, the hinge rod b66 pushes the bottom plate 67 to slide forward; when the rack 62 rises and resets, the hinge rod b66 drives the bottom plate 67 to slide backward, thereby realizing the reciprocating swing of the crushed waste asphalt concrete, effectively preventing it from accumulating on one side of the drying chamber 1, ensuring that the material is evenly distributed in the drying chamber 1, which is beneficial to the subsequent drying process.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A waste asphalt concrete recycling and drying device, comprising a drying chamber (1), characterized in that: A motor (3) is fixedly connected to the outer wall of the top of the drying box (1). A crushing roller (8) is fixedly connected to the output shaft of the motor (3). There are two sets of crushing rollers (8). A gear a (4) is fixedly connected to the rotation center shaft of the left crushing roller (8), and a gear b (5) is fixedly connected to the rotation center shaft of the right crushing roller (8). A crushing plate a (7) is fixedly connected to the inner wall of the top of the drying box (1). A crushing vibration component (6) is provided on the surface of the gear b (5). The crushing and shaking assembly (6) includes a half gear (61), the outer wall of which is meshed with a rack (62), the top side wall of the rack (62) is hinged with a hinge rod a (63), the end of the hinge rod a (63) away from the rack (62) is hinged with a sliding rod (64), the end of the sliding rod (64) away from the hinge rod a (63) is fixedly connected with a crushing plate b (65), the inner side wall of the drying box (1) is elastically connected with a connecting block (68) by a return spring (610), and the inner wall of the connecting block (68) is slidably connected with a guide rod (69).
2. The waste asphalt concrete recycling and drying device according to claim 1, characterized in that: A hinge rod b (66) is hinged to the side wall at the bottom end of the rack (62), and a base plate (67) is hinged to the end of the hinge rod b (66) away from the rack (62). A discharge door (2) is provided on the side wall at the bottom end of the drying box (1).
3. The waste asphalt concrete recycling and drying device according to claim 1, characterized in that: The gear b (5) meshes with the gear a (4), the half gear (61) is fixedly connected to the surface of the gear b (5), and the two sets of crushing rollers (8) are rotatably connected to the inner side wall of the drying box (1).
4. The waste asphalt concrete recycling and drying device according to claim 1, characterized in that: The sliding rod (64) passes through and is slidably connected to the inner wall at the top of the drying oven (1).
5. The waste asphalt concrete recycling and drying device according to claim 1, characterized in that: One end of the reset spring (610) is fixedly connected to the bottom end of the outer wall of the connecting block (68), and the other end of the reset spring (610) is fixedly connected to the inner side wall of the drying oven (1).
6. The waste asphalt concrete recycling and drying device according to claim 1, characterized in that: The gear a (4) is rotatably connected to the side wall at the top of the drying chamber (1), and the gear b (5) is rotatably connected to the side wall at the top of the drying chamber (1).
7. The waste asphalt concrete recycling and drying device according to claim 1, characterized in that: The guide rod (69) is fixedly connected to the inner side wall of the drying oven (1), and the connecting block (68) is fixedly connected to the outer wall of the rack (62).
8. The waste asphalt concrete recycling and drying device according to claim 2, characterized in that: The bottom plate (67) is slidably connected to the inner wall at the bottom of the drying oven (1).