Intelligent production device of high-elasticity and high-toughness asphalt for roads and bridges

Abstract

The utility model relates to the technical field of road material production, in particular to an intelligent production device of high-elasticity and high-toughness asphalt for roads and bridges, which comprises a reaction tank, a high-elasticity and high-toughness asphalt production device and a high-elasticity and high-toughness asphalt production device, the discharge end of the reaction tank is a flow control mechanism; the feeding mechanism is connected with the reaction tank; the metering and packaging mechanism is located at the discharging end of the flow control mechanism; the control system is used for controlling automatic operation of the production device; accurate feeding and mixing are achieved through automatic control, the uniformity and stability of high-elasticity and high-toughness asphalt are guaranteed, and therefore the long-term use performance and safety of roads and bridges are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of road material production, and in particular to an intelligent production device for high-elasticity and high-toughness asphalt for roads and bridges. Background Technology

[0002] In the field of road and bridge construction, high-elasticity and high-toughness asphalt plays a crucial role. The traditional production method for high-elasticity and high-toughness asphalt for roads and bridges involves adding base asphalt to a reaction tank, followed by the manual addition of rubber powder, elastomers, and fillers in multiple stages, and then stirring and boiling to produce the final product.

[0003] This traditional production method has many problems. First, manual material feeding is inefficient and cannot meet the needs of large-scale engineering construction. Second, the mixing of various materials in asphalt is uneven due to manual input, which directly affects product quality. Furthermore, manual measurement and packaging are required, resulting in low production efficiency. Ultimately, this leads to poor stability of the finished product, making it difficult to guarantee the long-term performance and safety of roads and bridges. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an intelligent production device for high-elasticity and high-toughness asphalt used in roads and bridges. Through automated control, it achieves precise feeding and mixing, ensuring the uniformity and stability of the high-elasticity and high-toughness asphalt, thereby guaranteeing the long-term performance and safety of roads and bridges.

[0005] This utility model discloses an intelligent production device for high-elasticity and high-toughness asphalt used in road and bridge construction. The production device includes:

[0006] The reaction vessel is used to mix the base asphalt and the modified materials; the discharge end of the reaction vessel is equipped with a flow control mechanism.

[0007] The feeding mechanism is connected to the reaction vessel;

[0008] The metering and packaging mechanism is located at the discharge end of the flow control mechanism;

[0009] A control system is used to control the automated operation of production equipment.

[0010] As a preferred embodiment of this utility model, the production device also includes a conveying mechanism for conveying the finished products output by the metering and packaging mechanism.

[0011] As a preferred embodiment of this utility model, the feeding mechanism includes a main feeding mechanism;

[0012] The main supply equipment includes asphalt tanks and material pumps that connect the asphalt tanks to the reaction tanks.

[0013] As a preferred embodiment of this utility model, the feeding mechanism also includes a secondary feeding mechanism;

[0014] The auxiliary feeding mechanism includes at least one feeding component and a mixing mechanism that connects the feeding component to the reaction vessel.

[0015] As a preferred embodiment of this utility model, the feeding assembly includes a feeding hopper and a metering assembly that connects the feeding hopper to the mixing mechanism.

[0016] As a preferred embodiment of this utility model, the production apparatus further includes:

[0017] The stirring mechanism is located inside the reaction vessel.

[0018] As a preferred embodiment of this utility model, the production apparatus further includes:

[0019] The shearing mechanism is located inside the reaction vessel.

[0020] As a preferred embodiment of this utility model, the mixing mechanism is a twin-screw extruder.

[0021] As a preferred embodiment of this utility model, the pipeline between the mixing mechanism and the reaction vessel is equipped with heat tracing.

[0022] As a preferred embodiment of this utility model, the inner wall of the barrel of the twin-screw extruder is provided with a nano-ceramic coating.

[0023] Compared with existing technologies, the beneficial effects of this utility model are as follows: the main supply mechanism, auxiliary supply mechanism, flow control mechanism, metering and packaging mechanism, and conveying mechanism all work collaboratively under the unified scheduling of the control system, accurately completing the feeding, mixing, discharging, metering and packaging, and finished product conveying of base asphalt and modified materials, greatly improving production efficiency, reducing manual intervention and errors, and ensuring stable and efficient operation of the production process; the twin-screw extruder can effectively break the agglomeration of rubber powder, elastomer, and filler, making them fully dispersed, the shearing force of the screw refines rubber powder and other particles, and the heating function melts the materials, achieving a good blending effect at the molecular level, ensuring that the modified materials enter the reaction tank uniformly and stably, laying a solid foundation for the production of high-quality, high-elasticity, and high-toughness asphalt. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] The following are labeled in the attached diagram: 1. Asphalt tank; 2. Material pump; 3. Mixing mechanism; 4. Shearing mechanism; 5. Mixing mechanism; 6. Feed hopper; 7. Metering component; 8. Reaction tank; 9. Control system; 10. Flow control mechanism; 11. Metering and packaging mechanism; 12. Conveying mechanism. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example

[0030] Reference Figure 1 This embodiment provides an intelligent production device for high-elasticity and high-toughness asphalt used in road and bridge construction. The production device includes:

[0031] Reaction vessel 8 is used for mixing base bitumen and modifying materials; specifically, reaction vessel 8 has a volume of 15m³. 3 The reaction vessel 8 is equipped with a temperature control device that can control the temperature of the material inside the reaction vessel 8 at 175-180℃. At the same time, the reaction vessel 8 is also equipped with an air purification system to capture and treat emissions during the reaction process, reduce the impact on the environment, and protect the health of the operators.

[0032] The discharge end of the reaction vessel 8 is a flow control mechanism 10; specifically, the flow control mechanism 10 is an automatic valve connected to the control system 9. The automatic valve can be a ball valve, butterfly valve, gate valve or gate valve, etc.

[0033] The feeding mechanism is connected to the reaction vessel 8;

[0034] The metering and packaging mechanism 11 is located at the discharge end of the flow control mechanism 10. Specifically, the metering and packaging mechanism 11 accurately measures the finished product and packages it into products of specified specifications. It generally includes a metering structure, such as a high-precision electronic scale and a flow meter for accurately measuring the amount of asphalt; and a packaging structure, including an automatic strapping machine and a packaging container storage device to realize packaging.

[0035] Control system 9 is used to control the automated operation of the production equipment;

[0036] The specific working process of this device is as follows: The base asphalt and the required modified materials are automatically conveyed to the reaction tank 8 through the feeding mechanism. In the reaction tank 8, the base asphalt and the modified materials are fully mixed. After being fully mixed, the high-elasticity and high-toughness asphalt flows out of the reaction tank 8 through the flow control mechanism 10 and enters the metering and packaging mechanism 11. The metering and packaging mechanism 11 is responsible for accurately measuring the finished product and packaging it into products of specified specifications. In the entire production process, the control system 9 is connected to the reaction tank 8, the feeding mechanism, the flow control mechanism 10 and the metering and packaging mechanism 11. It not only monitors and adjusts the working status of each component, but also realizes the automated management of the entire production process according to the preset parameters, ensuring the stable and efficient operation of the production process.

[0037] As a preferred embodiment of this utility model, the production device further includes a conveying mechanism 12 for conveying the finished products output by the metering and packaging mechanism 11; specifically, in order to improve the coordination of the entire system, the conveying mechanism 12 is connected to the control system 9.

[0038] The conveying mechanism 12 can efficiently and quickly transport the finished products output by the metering and packaging mechanism 11 to the subsequent storage or transfer area, ensuring the continuity and smoothness of production and avoiding the accumulation of finished products after packaging, which would affect production efficiency; the conveying mechanism 12 can be a belt conveyor or a chain conveyor, etc.

[0039] As a preferred embodiment of this utility model, the feeding mechanism includes a main feeding mechanism; specifically, in order to improve the coordination of the entire system, the main feeding mechanism is connected to the control system 9.

[0040] The main supply unit includes an asphalt tank 1 and a material pump 2 that connects the asphalt tank 1 to the reaction tank 8; specifically, the volume of the asphalt tank 1 is 40m³. 3 In order to ensure good fluidity of the asphalt, the asphalt tank 1 is equipped with a heating mechanism and a heat preservation mechanism, so that the temperature inside the asphalt tank 1 is 150℃ and the heat preservation temperature is 130℃. The material pump 2 is a cam rotor pump with a power of 11kw. The cam rotor pump is a positive displacement pump that relies on the volume change of the closed space formed between two synchronously rotating cam rotors and the pump casing to transport fluid. It has the characteristics of strong self-priming ability, stable delivery, and low shear force on the fluid.

[0041] As a preferred embodiment of this utility model, the feeding mechanism also includes a secondary feeding mechanism; specifically, in order to improve the coordination of the entire system, the secondary feeding mechanism is connected to the control system 9.

[0042] The auxiliary supply mechanism includes at least one feeding component and a mixing mechanism 5 that connects the feeding component to the reaction tank 8. The auxiliary supply mechanism is used to provide modified materials. The number of feeding components can be adjusted according to the type of modified materials. Since high-elasticity and high-toughness asphalt has three types of modified materials: rubber powder, elastomer, and filler, three feeding components are provided in this embodiment. The modified materials, after being fully mixed by the mixing mechanism 5, are transported to the reaction tank 8 in a relatively stable state. Compared with the separate transportation of multiple modified materials, the mixed material is less prone to stratification and sedimentation during transportation, thereby ensuring the stability and continuity of the supply to the reaction tank 8. This helps to maintain the stable operation of the entire production process, reduce product quality fluctuations caused by uneven or unstable supply, and ensure that the produced high-elasticity and high-toughness asphalt is of reliable quality and consistent performance.

[0043] In a preferred embodiment of this invention, the feeding assembly includes a feeding hopper 6 and a metering assembly 7 connecting the feeding hopper 6 to the mixing mechanism 5; more specifically, the feeding hopper 6 has a volume of 1.5 m³. 3 The metering component 7 can be a metering scale or a metering pump, with a range of 3t and an accuracy of three per thousand.

[0044] The specific working process of the feeding component is as follows: Before producing high-elasticity and high-toughness asphalt, the staff adds the required modified materials (such as rubber powder, elastomer and filler) into the corresponding feeding hopper 6. When production starts, the control system 9 issues a feeding instruction, and the metering component 7 connected to the feeding hopper 6 starts to work, conveying the modified materials to the mixing mechanism 5 according to the addition ratio, which replaces the traditional manual addition method and is more efficient and accurate.

[0045] As a preferred embodiment of this utility model, the production apparatus further includes:

[0046] The stirring mechanism 3 is located inside the reaction vessel 8. More specifically, the stirring mechanism 3 has a power of 7.5 kW and a stirring speed of 45-55 rpm. The stirring action of the stirring mechanism 3 can accelerate the molecular diffusion speed between materials, making the physical mixing process faster. At the same time, for possible chemical reactions, stirring can increase the collision opportunities between reactant molecules, increase the reaction rate, and promote the reaction to reach equilibrium more quickly.

[0047] As a preferred embodiment of this utility model, the production apparatus further includes:

[0048] Shearing mechanism 4 is installed inside reaction tank 8. Shearing mechanism 4 has a power of 20 kW and a shearing rate of 2000 rpm. Shearing mechanism 4 can apply strong shearing force to base asphalt and modified materials, effectively refining modified material particles, such as breaking rubber powder into smaller particle sizes, increasing its contact area with base asphalt, thereby promoting better fusion between the two. At the same time, the high shearing rate helps to break the agglomeration structure inside the modified materials, so that the materials are evenly dispersed in the base asphalt, avoiding local aggregation and ensuring the uniform and stable performance of the asphalt.

[0049] As a preferred embodiment of this utility model, the mixing mechanism 5 is a twin-screw extruder. Specifically, the mixing temperature of the twin-screw extruder is 175-180℃, the screw length-to-diameter ratio is 40, the screw diameter is 62.4mm, and the screw speed is 300-400rpm. Modified materials such as rubber powder and elastomers may agglomerate when they exist alone, and the fillers may also be unevenly distributed. The special structure and operation mode of the twin-screw extruder can effectively break these agglomerates, so that the material particles are fully dispersed. Through the shearing force of the screw, the rubber powder can be refined into smaller particles and evenly dispersed in the system composed of elastomers and fillers, avoiding local concentrations that are too high or too low. At the same time, the twin-screw extruder has a heating function, which can heat the rubber powder, elastomers, and other materials to a molten state. During the melting process, the stirring action of the screw promotes the mutual penetration and fusion of different materials at the molecular level, achieving a good blending effect.

[0050] As a preferred embodiment of this utility model, the pipeline between the mixing mechanism 5 and the reaction tank 8 is equipped with heat tracing; specifically, the heat tracing can be in the form of spiral coil or electric heat tracing, and the heat tracing is also connected to the control system 9 to play an automatic control role. The installation of heat tracing on the pipeline between the mixing mechanism 5 and the reaction tank 8 can preheat the modified material to the specified temperature in advance, reduce the temperature difference with the asphalt, accelerate the compatibility between the two, and reduce the phase separation or agglomeration problems caused by excessive temperature difference.

[0051] As a preferred embodiment of this utility model, the inner wall of the barrel of the twin-screw extruder is provided with a nano-ceramic coating. The nano-ceramic coating has extremely low surface roughness, which can reduce the frictional resistance between the modified asphalt and the inner wall of the barrel and reduce extrusion energy consumption.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of this utility model without departing from the spirit and scope of the technical solution 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 intelligent production device for high-elasticity and high-toughness asphalt used in road and bridge construction, characterized in that, The production apparatus includes: The reaction vessel (8) is used to mix the base asphalt and the modified materials; the discharge end of the reaction vessel (8) is a flow control mechanism (10). The feeding mechanism is connected to the reaction vessel (8); The metering and packaging mechanism (11) is located at the discharge end of the flow control mechanism (10); The control system (9) is used to control the automated operation of the production device.

2. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 1, characterized in that, The production device also includes a conveying mechanism (12) for conveying the finished products output by the metering and packaging mechanism (11).

3. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 1, characterized in that, The material supply mechanism includes a main supply mechanism; The main supply unit includes an asphalt tank (1) and a material pump (2) that connects the asphalt tank (1) to the reaction tank (8).

4. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 3, characterized in that, The feeding mechanism also includes a secondary feeding mechanism; The auxiliary supply mechanism includes at least one feeding component and a mixing mechanism (5) that connects the feeding component to the reaction vessel (8).

5. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 4, characterized in that, The feeding assembly includes a feeding hopper (6) and a metering assembly (7) that connects the feeding hopper (6) to the mixing mechanism (5).

6. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 1, characterized in that, The production apparatus also includes: A stirring mechanism (3) is installed inside the reaction vessel (8).

7. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 1, characterized in that, The production apparatus also includes: The shearing mechanism (4) is located inside the reaction vessel (8).

8. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 4, characterized in that, The mixing mechanism (5) is a twin-screw extruder.

9. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 4, characterized in that, The pipeline between the mixing mechanism (5) and the reaction vessel (8) is equipped with heat tracing.

10. The intelligent production device for high-elasticity and high-toughness asphalt for road and bridge applications as described in claim 8, characterized in that, The inner wall of the barrel of the twin-screw extruder is coated with a nano-ceramic coating.

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