Asphalt regenerating agent mixing device with multi-layer filtering structure

Abstract

The utility model discloses an asphalt regenerant mixing equipment with multilayer filtering structure, it includes cylinder, stirring subassembly and multilayer filtering component. Stirring subassembly realizes material even distribution through helical blade sectional arrangement, and multilayer filtering component adopts three -level filter screen and separates different particle size impurities gradually. Transition area guide vane group optimizes material flow path, and exhaust pipe and dust removal device reduce dust pollution. The application can efficiently mix asphalt regenerant and separate impurities effectively, compact structure, easy maintenance, significantly shorten production cycle, be applicable to the asphalt regenerant production field.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt recycling equipment, and in particular to an asphalt recycling agent mixing device with a multi-layer filtration structure. Background Technology

[0002] Currently, in the field of asphalt recycling agent mixing, it is usually necessary to thoroughly mix multiple raw materials to ensure uniform performance. However, due to the potential presence of impurities or particulate matter in the raw materials, equipment blockage or impact on the quality of the final product can easily occur during mixing. To address this issue, some equipment employs simple filtration devices, but these devices typically only have a single filter layer, making it difficult to effectively separate impurities of different particle sizes, and requiring frequent cleaning and maintenance. Furthermore, if the filter structure is poorly designed during mixing, it may lead to reduced mixing efficiency, thereby extending the production cycle. Therefore, how to achieve multi-stage filtration while ensuring efficient mixing has become a pressing technical problem that current asphalt recycling agent mixing equipment needs to solve. Utility Model Content

[0003] The purpose of this utility model is to provide an asphalt recycling agent mixing device with a multi-layer filtration structure, which solves the problems mentioned in the background art.

[0004] This invention is achieved by providing an asphalt recycling agent mixing device with a multi-layer filtration structure.

[0005] The equipment mainly consists of a cylindrical body, a stirring assembly disposed inside the cylindrical body, and a multi-layer filter assembly installed at the bottom of the cylindrical body. The cylindrical body serves as the main structure, and the stirring assembly and multi-layer filter assembly are all installed inside the cylindrical body, forming a complete working system.

[0006] The stirring assembly includes a main shaft, spiral blades fixed to the main shaft, and a drive motor mounted at the top of the main shaft. The main shaft is connected to the top and bottom of the cylinder via bearings and is driven to rotate by the drive motor. The spiral blades are arranged in segments along the axial direction of the main shaft, with a gap of 2-5 mm between the outer edge of each segment and the inner wall of the cylinder to ensure uniform distribution of material within the cylinder and prevent clogging. The drive motor is connected to the main shaft via a coupling, which is a flexible coupling used to absorb vibrations during operation and improve transmission stability.

[0007] The multi-layer filter assembly includes a first filter screen, a second filter screen, and a third filter screen, arranged sequentially from top to bottom and fixed within a support frame at the bottom of the cylinder. The support frame consists of several transverse and longitudinal reinforcing ribs connected by bolts for easy disassembly and cleaning. The first filter screen has a pore size of 10-15 mm and is used to intercept larger particles; the second filter screen has a pore size of 3-5 mm and is used to separate medium-sized particles; the third filter screen has a pore size of 0.5-1 mm and is used to further remove fine impurities. All three filter screens are made of stainless steel with a polished surface to reduce material adhesion and improve service life.

[0008] The cylinder body has an inlet and an outlet on its side wall. The inlet is located at the top of the cylinder body, and the outlet is located at the bottom of the cylinder body and communicates with the multi-layer filter assembly. A guide plate is installed at the inlet. The guide plate has an arc-shaped structure and its inner surface is coated with a wear-resistant coating to guide the material smoothly into the cylinder body and reduce impact force. A valve is installed at the outlet. The valve can be manually or pneumatically controlled, and its opening and closing status can be adjusted according to actual needs.

[0009] The top of the cylinder is also equipped with an exhaust pipe, one end of which communicates with the interior of the cylinder, and the other end connects to an external dust collection device. The inner wall of the exhaust pipe is equipped with spiral guide vanes with a pitch of 50-80 mm, used to guide gas flow and prevent dust accumulation. The dust collection device includes a filter element and a dust collection box. The filter element is made of high-efficiency filter material, capable of capturing more than 99% of fine particles. The dust collection box is connected to the filter element via a quick-release structure for easy periodic cleaning.

[0010] A transition zone is provided between the stirring assembly and the multi-layer filter assembly, and a guide plate assembly is installed in the transition zone. The guide plate assembly consists of several inclined guide plates with an inclination angle of 30-45 degrees, used to uniformly guide the stirred material to the upper part of the multi-layer filter assembly. The surface of the guide plates is provided with anti-slip texture, the depth of which is 0.5-1 mm, to increase the flowability of the material and reduce retention.

[0011] This invention relates to an asphalt recycling agent mixing device with a multi-layer filtration structure. The multi-layer filtration assembly effectively separates impurities of different particle sizes, while the optimized configuration of the mixing components improves mixing efficiency. Specifically, the segmented arrangement and gap design of the spiral blades ensure uniform material distribution within the cylinder, while the step-by-step filtration of the multi-layer filter significantly enhances impurity separation. Furthermore, the combined use of an exhaust pipe and dust removal device reduces dust pollution, and the design of the guide plate assembly further optimizes the material flow path, thereby shortening the production cycle. The overall structure is simple and compact, easy to maintain, and can be widely applied in the production of asphalt recycling agents. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the arrangement of the cylinder, stirring assembly, multi-layer filter assembly, and inlet and outlet.

[0013] Figure 2 This is a partial enlarged view of the multi-layer filter assembly of this utility model, showing in detail the arrangement of the first filter screen, the second filter screen and the third filter screen and their connection structure with the support frame.

[0014] Figure 3 This is a schematic diagram of the internal structure of the exhaust pipe of this utility model, which focuses on the arrangement of the spiral guide vanes and their connection with the dust removal device.

[0015] The attached figures are labeled as follows:

[0016] 1. Cylinder body; 2. Agitator assembly; 3. Multi-layer filter assembly; 4. Feed inlet; 5. Discharge outlet; 6. Exhaust pipe; 7. Dust removal device; 8. First filter screen; 9. Second filter screen; 10. Third filter screen; 11. Support frame; 12. Spiral guide vane. Detailed Implementation

[0017] A specific embodiment of the asphalt rejuvenator mixing device with a multi-layer filtration structure of this utility model is combined with Figures 1 to 3 Please provide a detailed explanation. For example... Figure 1 As shown, the equipment includes a cylinder 1, a stirring assembly 2, a multi-layer filter assembly 3, a feed inlet 4, a discharge outlet 5, an exhaust pipe 6, and a dust removal device 7. These components, through a reasonable arrangement and connection, together constitute a complete mixing and filtration system.

[0018] The cylinder 1 is the main structure of the entire equipment, and its internal space is used to hold the asphalt recycling agent raw materials and complete the mixing and filtration operations. The top of the cylinder 1 has an inlet 4, and the bottom has an outlet 5. The inlet 4 is located in the upper part of the cylinder 1, near the upper part of the mixing component 2, while the outlet 5 is located at the bottom of the cylinder 1 and connects to the multi-layer filter component 3. A guide plate is installed at the inlet 4. The guide plate has an arc-shaped structure and its inner surface is coated with a wear-resistant coating, which can guide the material smoothly into the interior of the cylinder 1 while reducing the impact of impact on the inner wall of the cylinder 1. The outlet 5 is equipped with a valve, which can be manually or pneumatically controlled, and its opening and closing status can be adjusted according to actual needs to achieve timed discharge of materials.

[0019] The mixing assembly 2 is installed inside the cylinder 1 and mainly consists of a main shaft, spiral blades, and a drive motor. The main shaft is connected to the top and bottom of the cylinder 1 via bearings to ensure stability during rotation. The drive motor is connected to the main shaft via a coupling, which employs a flexible coupling design to absorb vibrations during operation and improve transmission stability. The spiral blades are arranged in segments along the axial direction of the main shaft, with a gap of 2-5 mm between the outer edge of each segment and the inner wall of the cylinder 1. This gap design ensures uniform distribution of materials within the cylinder 1 while avoiding clogging problems caused by excessively small gaps. The segmented arrangement of the spiral blades allows materials to be fully mixed in areas at different heights, thereby improving mixing efficiency.

[0020] The multi-layer filter assembly 3 is installed at the bottom of the cylinder 1, and its specific structure is as follows: Figure 2 As shown, the multi-layer filter assembly 3 includes a first filter screen 8, a second filter screen 9, and a third filter screen 10, arranged sequentially from top to bottom and fixed within a support frame 11. The support frame 11 consists of several transverse and longitudinal reinforcing ribs connected by bolts for easy disassembly and cleaning. The first filter screen 8 has a pore size of 10-15 mm and is used to intercept larger particles; the second filter screen 9 has a pore size of 3-5 mm and is used to separate medium-sized particles; the third filter screen 10 has a pore size of 0.5-1 mm and is used to further remove fine impurities. All three filter screens are made of stainless steel and are polished to reduce material adhesion and improve service life. The design of the multi-layer filter assembly 3 achieves a step-by-step filtration effect, effectively separating impurities of different particle sizes, thereby improving the quality of the final product.

[0021] The exhaust pipe 6 is located at the top of the cylinder 1, with one end connected to the interior of the cylinder 1 and the other end connected to the external dust collection device 7. The internal structure of the exhaust pipe 6 is as follows: Figure 3 As shown, its inner wall is equipped with spiral guide vanes 12, with a pitch of 50-80 mm. The spiral guide vanes 12 are designed to guide gas flow and prevent dust accumulation, thereby ensuring the unobstructed flow of the exhaust pipe 6. The dust removal device 7 includes a filter element and a dust collection box. The filter element is made of high-efficiency filter material, capable of capturing more than 99% of fine particles. The dust collection box is connected to the filter element via a quick-release structure, facilitating regular cleaning. The combined use of the exhaust pipe 6 and the dust removal device 7 not only reduces dust pollution to the environment but also improves the overall environmental performance of the equipment.

[0022] A transition zone is provided between the stirring assembly 2 and the multi-layer filter assembly 3, and a guide plate assembly is installed in the transition zone. The guide plate assembly consists of several inclined guide plates with an inclination angle of 30-45 degrees. The surface of the guide plates is provided with anti-slip texture, and the depth of the anti-slip texture is 0.5-1 mm. The design of the guide plate assembly can uniformly guide the stirred material to the upper part of the multi-layer filter assembly 3, thereby optimizing the material flow path and reducing stagnation.

[0023] In practical applications, asphalt recycling agent raw materials enter the cylinder 1 through the feed inlet 4 and flow smoothly into the mixing zone under the guidance of the guide plates. The drive motor drives the main shaft to rotate, and the spiral blades rotate accordingly to mix the raw materials. Due to the segmented arrangement and gap design of the spiral blades, the material can be evenly distributed and fully mixed within the cylinder 1. The mixed material moves downward under gravity and enters the transition zone between the mixing assembly 2 and the multi-layer filter assembly 3. Under the action of the guide plate assembly, the material is evenly guided to the upper part of the multi-layer filter assembly 3 and passes through the first filter screen 8, the second filter screen 9, and the third filter screen 10 for step-by-step filtration. The first filter screen 8 intercepts larger particles of impurities, the second filter screen 9 separates medium-sized particles, and the third filter screen 10 further removes fine impurities. The material after multi-layer filtration is discharged through the discharge outlet 5, becoming a qualified asphalt recycling agent product.

[0024] During the mixing and filtration process, the generated dust is discharged outside the cylinder 1 through the exhaust pipe 6. The spiral guide vanes 12 inside the exhaust pipe 6 guide the gas flow and prevent dust accumulation. The discharged gas enters the dust collection device 7, where the filter element efficiently filters the dust, and the dust collection box collects the filtered dust. The quick-release structure of the dust collection device 7 allows for easy disassembly and cleaning of the dust collection box, thus ensuring the long-term stable operation of the equipment.

[0025] Through the aforementioned structure and operating principle, this utility model's asphalt recycling agent mixing equipment achieves efficient mixing and multi-stage filtration. The optimized design of the mixing component 2 improves mixing efficiency, the step-by-step filtration design of the multi-layer filtration component 3 significantly improves impurity separation, the combined use of the exhaust pipe 6 and dust removal device 7 effectively reduces dust pollution, and the design of the guide plate assembly optimizes the material flow path. The overall structure is simple and compact, easy to maintain, and can be widely applied in the production of asphalt recycling agents.

[0026] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with specific application scenarios.

[0027] In practical applications, the asphalt recycling agent raw material is first fed into the cylinder 1 through inlet 4. The guide plate at inlet 4 has an arc-shaped structure and is coated with a wear-resistant coating. Its inner surface can effectively guide the material smoothly into the cylinder 1, while reducing the impact of impact on the inner wall of the cylinder 1. This design ensures that the material will not splash or accumulate due to impact when entering the cylinder, thus providing good initial conditions for subsequent mixing and filtration operations.

[0028] Subsequently, the drive motor in the mixing assembly 2 is started, and the drive motor drives the main shaft to rotate via a flexible coupling. The spiral blades on the main shaft rotate accordingly, beginning to mix the raw materials. Because the spiral blades are arranged in segments along the main shaft axis, and each segment has a 2-5 mm gap between its outer edge and the inner wall of the cylinder 1, this design not only ensures that the material is evenly distributed within the cylinder 1, but also avoids clogging problems caused by excessively small gaps. In addition, the segmented arrangement of the spiral blades allows the material to be fully mixed in areas at different heights, thereby significantly improving mixing efficiency. During the mixing process, the flow path of the material within the cylinder 1 is optimized, ensuring the uniformity of mixing.

[0029] After thorough mixing, the material moves downwards under gravity and enters the transition zone between the mixing assembly 2 and the multi-layer filter assembly 3. A guide vane assembly is installed in this transition zone. This assembly consists of several guide vanes tilted at 30-45 degrees, with anti-slip textures on their surfaces, the depth of which is 0.5-1 mm. This guide vane design uniformly guides the mixed material to the upper part of the multi-layer filter assembly 3, thereby optimizing the material flow path and reducing stagnation. This design effectively avoids material accumulation or blockage during flow, further improving the equipment's operating efficiency.

[0030] After entering the multi-layer filter assembly 3, the material is filtered sequentially through the first filter screen 8, the second filter screen 9, and the third filter screen 10. The first filter screen 8 has a pore size of 10-15 mm and is used to intercept larger particles of impurities; the second filter screen 9 has a pore size of 3-5 mm and is used to separate medium-sized particles; the third filter screen 10 has a pore size of 0.5-1 mm and is used to further remove fine impurities. All three filter screens are made of stainless steel and are polished to reduce material adhesion and improve service life. Through the step-by-step filtration design, impurities of different particle sizes are effectively separated, thereby significantly improving the quality of the final product. The support frame 11 consists of several transverse and longitudinal reinforcing ribs, which are connected by bolts for easy disassembly and cleaning, making the maintenance of the multi-layer filter assembly 3 more convenient.

[0031] During the mixing and filtration process, the generated dust is discharged outside the cylinder 1 through the exhaust pipe 6. The inner wall of the exhaust pipe 6 is equipped with spiral guide vanes 12, with a pitch of 50-80 mm. The spiral guide vanes 12 are designed to guide gas flow and prevent dust accumulation, thus ensuring the unobstructed flow of the exhaust pipe 6. The discharged gas enters the dust collection device 7, where the filter element is made of high-efficiency filter material, capable of capturing over 99% of fine particles. The dust collection box is used to collect the filtered dust. The dust collection box is connected to the filter element via a quick-release structure for easy periodic cleaning. This design not only reduces dust pollution to the environment but also improves the overall environmental performance of the equipment.

[0032] The material, after passing through multiple filtration stages, is finally discharged through outlet 5. Outlet 5 is equipped with a valve, which can be manually or pneumatically controlled. The opening and closing status can be adjusted according to actual needs to achieve timed material discharge. This design makes operation more flexible and can meet the needs of different production scenarios.

[0033] As can be seen from the above steps, the asphalt recycling agent mixing equipment of this utility model achieves efficient mixing and multi-stage filtration functions through reasonable structural design and operating principle. The segmented spiral blade design and gap setting of the mixing component 2 ensure the uniform distribution of materials in the cylinder 1, the step-by-step filtration design of the multi-layer filter component 3 significantly improves the impurity separation effect, the combined use of the exhaust pipe 6 and the dust removal device 7 effectively reduces dust pollution, and the design of the guide plate group optimizes the material flow path. The overall structure is simple and compact, easy to maintain, and can be widely used in the production field of asphalt recycling agents.

[0034] Contents not described in detail in this specification are existing technologies known to those skilled in the art. The model parameters of related electrical components are not specifically limited; conventional equipment can be used. Electrical control components and connection methods not mentioned in this technical solution are existing technologies and are not shown in the figures; therefore, they will not be elaborated upon here.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 mixing device for asphalt recycling agents with a multi-layer filtration structure, characterized in that, The device mainly consists of a cylinder (1), a stirring assembly (2) installed inside the cylinder (1), and a multi-layer filter assembly (3) installed at the bottom of the cylinder (1). The stirring assembly (2) includes a main shaft, spiral blades fixed on the main shaft, and a drive motor installed at the top of the main shaft. The multi-layer filter assembly (3) includes a first filter screen (8), a second filter screen (9), and a third filter screen (10), which are arranged from top to bottom and fixed in the support frame (11).

2. The asphalt recycling agent mixing equipment with a multi-layer filtration structure according to claim 1, characterized in that: The spiral blades are arranged in segments along the axial direction of the main shaft, and there is a gap between the outer edge of each blade and the inner wall of the cylinder (1), with the gap width being 2 mm to 5 mm.

3. The asphalt recycling agent mixing device with a multi-layer filtration structure according to claim 1, characterized in that: The first filter screen (8) has a pore size of 10 mm to 15 mm, the second filter screen (9) has a pore size of 3 mm to 5 mm, and the third filter screen (10) has a pore size of 0.5 mm to 1 mm.

4. The asphalt recycling agent mixing device with a multi-layer filtration structure according to claim 1, characterized in that: The cylinder (1) has an inlet (4) and an outlet (5) on its side wall. The inlet (4) is located at the top of the cylinder (1), and the outlet (5) is located at the bottom of the cylinder (1) and is connected to the multi-layer filter assembly (3). A guide plate is installed at the inlet (4), and the guide plate has an arc-shaped structure.

5. The asphalt recycling agent mixing device with a multi-layer filtration structure according to claim 1, characterized in that: The top of the cylinder (1) is provided with an exhaust pipe (6), one end of which is connected to the inside of the cylinder (1) and the other end is connected to the dust removal device (7); the inner wall of the exhaust pipe (6) is provided with a spiral guide plate (12), and the pitch of the spiral guide plate (12) is 50 mm to 80 mm.

6. The asphalt recycling agent mixing device with a multi-layer filtration structure according to claim 1, characterized in that: A transition zone is provided between the stirring assembly (2) and the multi-layer filter assembly (3), and a guide plate assembly is installed in the transition zone; the guide plate assembly consists of several inclined guide plates, and the inclination angle of the guide plates is 30 degrees to 45 degrees.

7. The asphalt recycling agent mixing device with a multi-layer filtration structure according to claim 6, characterized in that: The surface of the deflector is provided with anti-slip texture, the depth of which is 0.5 mm to 1 mm.

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