Processing device for recycling and blending waste concrete into asphalt
By designing screening and mixing devices, the problem of uniformity when waste concrete and asphalt are fused is solved, the production of high-quality recycled asphalt mixture is achieved, and resource utilization and production efficiency are improved.
Patent Information
- Application Number
- CN202422812798.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In the prior art, when waste concrete is directly fused with asphalt, no screening is performed, resulting in poor fusion effect and poor material uniformity and consistency.
A device including a concrete screening box and a mixing processing box was designed. Primary, secondary and tertiary screening nets and heating blocks were set up. The screening nets were used to separate waste concrete materials of different particle sizes. The frequency conversion motor was used to control the stirring speed and the heating block was used to adjust the temperature to ensure mixing uniformity.
It achieves high-quality recycling of waste concrete materials, improves the uniformity and consistency of materials, ensures the performance of recycled asphalt mixture, and improves resource utilization and production efficiency.
Smart Images
Figure CN223386496U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of concrete asphalt fusion processing, in particular to a device for processing waste concrete regeneration and fusion into asphalt. Background Art
[0002] Waste concrete refers to unused concrete blocks or products generated during construction, infrastructure development, and building demolition. Asphalt is an important organic cementitious material, widely used in a variety of fields, including road construction and building waterproofing. The following is a detailed introduction to asphalt: Asphalt is a complex, dark-brown mixture of hydrocarbons of varying molecular weights and their non-metallic derivatives, present in liquid, semi-solid, or solid states. It is an organic cementitious material that provides water, moisture, and corrosion resistance.
[0003] At present, when waste concrete is recycled, most of the time, the crushed waste concrete and asphalt are directly fused together. The waste concrete is not screened and separated, resulting in poor fusion effect.
[0004] In view of this, research and improvement are carried out on the existing problems, and a waste concrete recycling and asphalt processing device is provided. The device has a reasonable structural design and can effectively separate waste concrete materials of different particle sizes through the screening net, ensuring the uniformity and consistency of the materials. The purpose is to solve the problem and improve the practical value through this technology. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a waste concrete recycling and asphalt processing device.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a waste concrete recycling and asphalt processing device, comprising a concrete screening box and a mixing processing box, a conveying structure is arranged between the concrete screening box and the mixing processing box, a rotary fan and fixing screws are installed on the outer wall of the front end of the concrete screening box, a motor housing is installed on the top of the mixing processing box, a silane coupling agent inlet is provided on one side of the motor housing, a waste outlet is installed on the outer wall of the concrete screening box, a first-level screening net, a second-level screening net, a third-level screening net and an inclined plate are installed inside the concrete screening box, hydraulic rods are provided at both ends of the first-level screening net, a variable frequency motor is installed inside the motor housing, a stirring shaft is connected to the bottom of the variable frequency motor, and a heating block is installed on the inner wall of the concrete screening box.
[0007] As a further description of the above technical solution:
[0008] The upper end of the concrete screening box is fixedly connected to a feed port, a transparent glass is fixedly installed on the front end outer wall of the mixing processing box, a mixing discharge port is provided at the bottom of the transparent glass, the mixing discharge port is fixedly connected to the outer wall of the mixing processing box, and the mixing processing box is communicated with the mixing discharge port.
[0009] As a further description of the above technical solution:
[0010] One end of the conveying structure is connected to the bottom of the outer wall of the concrete screening box, and the other end is connected to the top of the outer wall of the mixing and processing box. The concrete screening box, the mixing and processing box and the conveying structure are connected, and the rotating fan is fixedly mounted on the outer wall of the concrete screening box by fixing screws.
[0011] As a further description of the above technical solution:
[0012] The motor housing is fixedly mounted on the top of the mixing processing box, the silane coupling agent inlet is fixedly connected to the top of the mixing processing box, the variable frequency motor is fixedly mounted inside the motor housing, the stirring shaft is transmission-connected to the bottom of the variable frequency motor, the stirring shaft is rotationally connected to the inside of the mixing processing box, the heating block is fixedly mounted on the inner wall of the mixing processing box, and the number of the heating blocks is several.
[0013] As a further description of the above technical solution:
[0014] The first-level screening net, the second-level screening net and the third-level screening net are movably connected inside the concrete screening box and reciprocate inside the concrete screening box. The first-level screening net is arranged above the second-level screening net, and the second-level screening net is arranged above the third-level screening net. The grid widths inside the first-level screening net, the second-level screening net and the third-level screening net decrease in sequence.
[0015] As a further description of the above technical solution:
[0016] The waste outlet is fixedly connected to the outer wall of the concrete screening box. There are three waste outlets, which are respectively arranged on one side of the primary screening net, the secondary screening net and the tertiary screening net. The primary screening net, the secondary screening net and the tertiary screening net are inclined, and the direction is consistent with the waste outlet. The inclined plate is fixedly installed at the bottom of the tertiary screening net. The conveying structure is arranged on one side of the inclined plate. The inclined plate is inclined. The hydraulic rod is fixedly connected to both ends of the primary screening net, and the hydraulic rod is fixedly connected to the inner wall of the concrete screening box.
[0017] The utility model has the following beneficial effects:
[0018] This utility model utilizes a well-designed screening and mixing device to effectively blend sand and gravel from waste concrete with asphalt, creating a high-quality recycled asphalt mixture. The device's screening mesh effectively separates waste concrete materials of varying particle sizes, ensuring uniformity and consistency. Furthermore, a heating block heats the material within the mixing chamber to achieve the optimal mixing temperature for the asphalt, ensuring the performance of the mixture.
[0019] The use of a variable frequency motor allows for precise control of the mixing speed, ensuring the uniformity of the mixture. The entire device is designed with ease of operation and maintenance in mind, significantly increasing the recycling rate of waste concrete and contributing significantly to environmental protection and resource conservation. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the overall structure of a waste concrete recycling and asphalt processing device proposed by the present invention;
[0021] Figure 2 This is a schematic diagram of the interior of a concrete screening box for recycling waste concrete into an asphalt processing device proposed in the present invention;
[0022] Figure 3 This is a schematic diagram of the interior of a mixing processing box for recycling waste concrete into an asphalt processing device proposed in the present invention;
[0023] Figure 4 This is a plan view of the first-level screening net of a waste concrete recycling and asphalt processing device proposed by the utility model.
[0024] Legend:
[0025] 1. Concrete screening box; 2. Mixing and processing box; 3. Conveying structure; 4. Feed inlet; 5. Waste outlet; 6. Rotating fan; 7. Fixing screws; 8. Motor housing; 9. Silane coupling agent inlet; 10. Transparent glass; 11. Mixing outlet; 12. First-stage screening mesh; 13. Second-stage screening mesh; 14. Third-stage screening mesh; 15. Inclined plate; 16. Hydraulic rod; 17. Frequency conversion motor; 18. Heating block; 19. Agitator shaft. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] Reference Figure 1-4 , the utility model provides an embodiment: a waste concrete recycling and asphalt processing device, comprising a concrete screening box 1 and a mixing processing box 2, a conveying structure 3 is provided between the concrete screening box 1 and the mixing processing box 2, a rotary fan 6 and a fixing screw 7 are installed on the outer wall of the front end of the concrete screening box 1, a motor housing 8 is installed on the top of the mixing processing box 2, a silane coupling agent inlet 9 is provided on one side of the motor housing 8, a waste outlet 5 is installed on the outer wall of the concrete screening box 1, a first-level screening net 12, a second-level screening net 13, a third-level screening net 14 and an inclined plate 15 are installed inside the concrete screening box 1, hydraulic rods 16 are provided at both ends of the first-level screening net 12, a variable frequency motor 17 is installed inside the motor housing 8, a stirring shaft 19 is connected to the bottom of the variable frequency motor 17, and a heating block 18 is installed on the inner wall of the concrete screening box 1.
[0029] In the present invention, the upper end of the concrete screening box 1 is fixedly connected with a feed port 4, and a transparent glass 10 is fixedly installed on the front outer wall of the mixing processing box 2. The bottom of the transparent glass 10 is provided with a mixing discharge port 11, and the mixing discharge port 11 is fixedly connected to the outer wall of the mixing processing box 2. The mixing processing box 2 is connected to the mixing discharge port 11. By providing the feed port 4, waste concrete can be conveniently poured into the concrete screening box 1 for preliminary screening. The provision of the transparent glass 10 enables the operator to intuitively observe the material mixing state in the mixing processing box 2, ensuring the transparency and controllability of the processing process. The connectivity of the mixing discharge port 11 ensures that the processed material can be smoothly discharged from the mixing processing box 2, thereby improving production efficiency. In addition, the design of the transparent glass 10 and the mixing discharge port 11 not only facilitates operation monitoring, but also facilitates adjustment and optimization of the processing process, thereby achieving the purpose of improving product quality and production efficiency.
[0030] Furthermore, one end of the conveying structure 3 is connected to the bottom of the outer wall of the concrete screening box 1, and the other end is connected to the top of the outer wall of the mixing and processing box 2. The concrete screening box 1, the mixing and processing box 2 and the conveying structure 3 are connected. The rotating fan 6 is fixedly mounted on the outer wall of the concrete screening box 1 by fixing screws 7. The setting of the conveying structure 3 enables the waste concrete that has undergone preliminary screening to be effectively transported to the mixing and processing box 2 for further processing. Through this connected design, the number of times the material is handled can be reduced, the labor intensity can be reduced, and the degree of automation of the entire processing process can be improved. The addition of the rotating fan 6 can blow out the dust inside the device and reduce the occurrence of danger.
[0031] Furthermore, the motor housing 8 is fixedly mounted on the top of the mixing processing box 2, the silane coupling agent inlet 9 is fixedly connected to the top of the mixing processing box 2, the frequency conversion motor 17 is fixedly mounted inside the motor housing 8, the stirring shaft 19 is transmission-connected to the bottom of the frequency conversion motor 17, the stirring shaft 19 is rotationally connected to the inside of the mixing processing box 2, and the heating block 18 is fixedly mounted on the inner wall of the mixing processing box 2, and the number of the heating blocks 18 is several.
[0032] Specifically, the uniform arrangement of the heating blocks 18 ensures a uniform temperature distribution within the mixing and processing box 2, thereby allowing the silane coupling agent to be mixed with the waste concrete more fully and evenly. This uniform mixing not only improves the quality of the recycled asphalt, but also ensures the stability of its performance.
[0033] The use of variable-frequency motor 17 allows the speed of agitator shaft 19 to be adjusted according to actual processing needs, thereby achieving optimal mixing results. The provision of motor housing 8 not only protects variable-frequency motor 17 from environmental influences but also facilitates maintenance and replacement. The provision of silane coupling agent inlet 9 allows for accurate and continuous addition of silane coupling agent to mixing chamber 2, ensuring the chemical properties of the regenerated asphalt.
[0034] Furthermore, the primary screening net 12, the secondary screening net 13 and the tertiary screening net 14 are movably connected to the interior of the concrete screening box 1 and reciprocate inside the concrete screening box 1. The primary screening net 12 is arranged above the secondary screening net 13, and the secondary screening net 13 is arranged above the tertiary screening net 14. The grid widths inside the primary screening net 12, the secondary screening net 13 and the tertiary screening net 14 decrease successively.
[0035] Furthermore, the waste outlet 5 is fixedly connected to the outer wall of the concrete screening box 1. There are three waste outlets 5, which are respectively arranged on one side of the primary screening net 12, the secondary screening net 13 and the tertiary screening net 14. The primary screening net 12, the secondary screening net 13 and the tertiary screening net 14 are inclined, and the direction is consistent with the waste outlet 5. The inclined plate 15 is fixedly installed at the bottom of the tertiary screening net 14. The conveying structure 3 is arranged on one side of the inclined plate 15. The inclined plate 15 is inclined. The hydraulic rod 16 is fixedly connected to both ends of the primary screening net 12. The hydraulic rod 16 is fixedly connected to the inner wall of the concrete screening box 1. Through the telescopic movement of the hydraulic rod 16, the primary screening net 12 can achieve a reciprocating screening action up and down, thereby effectively separating the coarse aggregate, fine aggregate and dust in the waste concrete. The secondary screening net 13 and the tertiary screening net 14 are also driven by the hydraulic rod to complete their respective screening tasks, ensuring that materials of different particle sizes are accurately classified. The function of the inclined plate 15 is to guide the screened materials to move toward the conveying structure 3 to facilitate subsequent collection and transportation.
[0036] The conveying structure 3 is used to convey the screened materials to the designated location. The design of the entire device makes the recycling process of waste concrete more efficient and automated, greatly improving the recycling rate of resources.
[0037] Working principle and usage process:
[0038] First, crushed waste concrete is fed into the concrete screening box 1 through the feed port 4. At this point, the primary screening mesh 12 begins operation, separating large impurities from the concrete. The concrete then enters the secondary screening mesh 13, where medium-sized impurities are further screened out. Finally, the concrete reaches the tertiary screening mesh 14, where fine impurities are separated from the concrete particles. After the three-stage screening, the clean concrete particles slide through the inclined plate 15 into the mixing and processing box 2.
[0039] By starting the rotating fan 6, the dust in the screening process can be blown out to prevent dust accumulation.
[0040] In mixing chamber 2, variable frequency motor 17 is activated, and agitator shaft 19 begins to rotate, evenly mixing the silane coupling agent into the concrete particles. Heating block 18 heats the mixed material to promote bonding between the silane coupling agent and the concrete particles, which then fuses with the asphalt. After mixing is complete, the mixed material is discharged through mixing outlet 11, completing the recycling of waste concrete and its integration into the asphalt process.
[0041] The design of the entire device aims to improve the utilization rate of waste concrete, reduce the impact of construction waste on the environment, and provide a new source of material for asphalt processing, with significant environmental and economic benefits.
[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A waste concrete recycling and asphalt processing device, comprising a concrete screening box (1) and a mixing processing box (2), characterized in that: A conveying structure (3) is provided between the concrete screening box (1) and the mixing processing box (2); a rotary fan (6) and a fixing screw (7) are installed on the outer wall of the front end of the concrete screening box (1); a motor housing (8) is installed on the top of the mixing processing box (2); a silane coupling agent inlet (9) is provided on one side of the motor housing (8); a waste outlet (5) is installed on the outer wall of the concrete screening box (1); a first-stage screening net (12), a second-stage screening net (13), a third-stage screening net (14) and an inclined plate (15) are installed inside the concrete screening box (1); hydraulic rods (16) are provided at both ends of the first-stage screening net (12); a variable frequency motor (17) is installed inside the motor housing (8); a stirring shaft (19) is connected to the bottom of the variable frequency motor (17); and a heating block (18) is installed on the inner wall of the concrete screening box (1).
2. The waste concrete recycling and asphalt processing device according to claim 1 is characterized by: The upper end of the concrete screening box (1) is fixedly connected to a feed port (4); a transparent glass (10) is fixedly mounted on the front outer wall of the mixing processing box (2); a mixing discharge port (11) is provided at the bottom of the transparent glass (10); the mixing discharge port (11) is fixedly connected to the outer wall of the mixing processing box (2); and the mixing processing box (2) and the mixing discharge port (11) are in communication.
3. The waste concrete recycling and asphalt processing device according to claim 1 is characterized by: One end of the conveying structure (3) is connected to the bottom of the outer wall of the concrete screening box (1), and the other end is connected to the top of the outer wall of the mixing and processing box (2). The concrete screening box (1), the mixing and processing box (2) and the conveying structure (3) are connected, and the rotating fan (6) is fixedly mounted on the outer wall of the concrete screening box (1) by fixing screws (7).
4. The waste concrete recycling and asphalt processing device according to claim 1 is characterized by: The motor housing (8) is fixedly mounted on the top of the mixing processing box (2), the silane coupling agent inlet (9) is fixedly connected to the top of the mixing processing box (2), the variable frequency motor (17) is fixedly mounted inside the motor housing (8), the stirring shaft (19) is transmission-connected to the bottom of the variable frequency motor (17), the stirring shaft (19) is rotationally connected to the inside of the mixing processing box (2), and the heating block (18) is fixedly mounted on the inner wall of the mixing processing box (2), and the number of the heating blocks (18) is several.
5. The waste concrete recycling and asphalt processing device according to claim 1 is characterized by: The first-level screening net (12), the second-level screening net (13) and the third-level screening net (14) are movably connected inside the concrete screening box (1) and reciprocate inside the concrete screening box (1). The first-level screening net (12) is arranged above the second-level screening net (13), and the second-level screening net (13) is arranged above the third-level screening net (14). The mesh widths inside the first-level screening net (12), the second-level screening net (13) and the third-level screening net (14) decrease in sequence.
6. The waste concrete recycling and asphalt processing device according to claim 1 is characterized by: The waste outlet (5) is fixedly connected to the outer wall of the concrete screening box (1). There are three waste outlets (5), which are respectively arranged on one side of the primary screening net (12), the secondary screening net (13) and the tertiary screening net (14). The primary screening net (12), the secondary screening net (13) and the tertiary screening net (14) are inclined, and the direction is consistent with the waste outlet (5). The inclined plate (15) is fixedly installed at the bottom of the tertiary screening net (14). The conveying structure (3) is arranged on one side of the inclined plate (15). The inclined plate (15) is inclined. The hydraulic rod (16) is fixedly connected to both ends of the primary screening net (12). The hydraulic rod (16) is fixedly connected to the inner wall of the concrete screening box (1).