Spatial layout structure of road construction material production base

Abstract

The application provides a road construction material production base space layout structure and belongs to the technical field of asphalt mixing stations, and comprises a production area, a aggregate storage area, a test area and an office area; the production area comprises a mixing building system, a water stable production area and a crushing production area, the aggregate storage area comprises an asphalt storage area, a water stable storage area and a milling material yard; the mixing building system is located at the northwest side of the whole site, the asphalt storage area is arranged at the north side of the mixing building system, the water stable storage area and the water stable production area are arranged at the east side of the asphalt storage area, the milling material yard is arranged at the north side of the water stable production area, the crushing production area is arranged at the north side of the milling material yard, and the test area and the office area are arranged at the middle part between the mixing building system and the asphalt storage area; raw materials are stored in the asphalt storage area, the water stable storage area and the milling material yard, different specifications and types of materials are strictly stored in different warehouses, gradation deviation caused by mixed particle sizes is avoided, raw material loss and negative influence on asphalt quality are avoided.

Description

Technical Field

[0001] This invention relates to the field of asphalt mixing plant technology, specifically to the spatial layout structure of road construction material production bases. Background Technology

[0002] A road construction materials production base is a specialized facility for producing asphalt mixtures and water-stabilized materials, primarily used in infrastructure projects such as road construction, bridge engineering, and airport runways. It needs to include the following functions: 1. Raw material storage and management; 2. Aggregate screening and batching; 3. Asphalt mixture mixing; 4. Finished material transportation. The storage and management of raw materials places specific requirements on the site. Different raw materials should be stored separately according to their specifications and rock types. For example, raw materials include aggregates and mineral powder. Asphalt from different sources and grades should be stored separately to avoid mixing. Aggregates include coarse aggregates such as crushed stone and gravel, and fine aggregates such as natural sand and manufactured sand. The storage area needs to be hardened and have good drainage facilities. Fine aggregates should be covered with rainproof tarpaulins. Furthermore, the storage area for untested materials is far from the testing area, with long transportation routes that intersect with the production area's flow lines. This increases energy consumption during transportation and may cause aggregate breakage and gradation damage due to repeated handling. Materials that have passed testing cannot be directly transported to production equipment and require multiple transfers, exacerbating material loss.

[0003] In existing technologies, most asphalt mixing plants or integrated production bases suffer from unreasonable storage area planning, lack of testing processes, and redundant workflows, which directly leads to an increased rate of raw material damage. Therefore, there is an urgent need for a scientific spatial layout structure for production bases, especially involving the planning of raw material storage areas and scientific workflow planning, in order to avoid raw material losses and low production efficiency caused by unreasonable layout. Summary of the Invention

[0004] Purpose of the Invention: The purpose of this invention is to address the shortcomings of existing technologies, such as the waste of space and resources caused by unreasonable spatial layout and the loss of raw materials due to unreasonable planning of raw material storage areas. It provides a spatial layout structure for road construction material production bases, dividing raw material storage into asphalt silos, water-stabilized material silos, and milled material storage areas. Furthermore, these areas are further divided into multiple independent silos by roofs and partitions, strictly separating materials of different specifications and types to prevent gradation deviations caused by particle size mixing, thus avoiding raw material losses and negative impacts on asphalt quality.

[0005] Technical Solution: The spatial layout structure of the road construction material production base described in this invention includes a production area, an aggregate storage area, and a command center (including offices). The production area includes a mixing plant system, a water-stabilized material production area, and a crushing production area. The aggregate storage area includes an asphalt silo area, a water-stabilized material silo area, and a milling material stockpile. The mixing plant system is located on the east side of the entire site. An asphalt silo area is located to the west of the mixing plant system. A water-stabilized material silo area is located to the south of the asphalt silo area. A water-stabilized material production area is located to the southwest of the water-stabilized material silo area. A milling material stockpile is located to the east of the water-stabilized material production area. A crushing production area is located to the east of the milling material stockpile. The command center (including offices) is located in the middle of the mixing plant system and the asphalt silo area.

[0006] The water-stabilized material production area and the water-stabilized material storage area are adjacent, allowing for direct supply of raw materials and reducing transportation time. The milling material storage yard and crushing production area are located on the north side, facilitating the processing and reuse of recycled materials, and the crushed materials can be stored or used nearby.

[0007] Furthermore, the mixing plant system includes one 2000-type asphalt production unit and one 4000-type asphalt production unit, arranged side-by-side relative to the asphalt silo area. This side-by-side arrangement reduces investment as both units share resources, and their proximity to the silo area facilitates raw material supply, reducing transportation distances from the silo area to the production equipment and lowering transportation time and energy consumption. Additionally, the two units can flexibly allocate raw materials according to production needs, avoiding supply interruptions due to equipment failures or production plan adjustments.

[0008] Furthermore, the asphalt storage area includes a first asphalt storage area and a second asphalt storage area, which are arranged front to back within the site. The first asphalt storage area is adjacent to the mixing plant system. This proximity significantly reduces the transportation distance of raw materials from the storage area to the mixing plant, lowering transportation time and energy consumption. The front-to-back arrangement of the two asphalt storage areas makes the overall site layout more compact, reducing the area occupied. Simultaneously, the two asphalt storage areas address the need for quality control in highway engineering. Materials used in highway engineering must be tested batch by batch, and only materials that have passed testing and are confirmed to be qualified can be used. Untested materials may have quality issues and must be tested to verify their performance before use. The two storage areas prevent the mixing of qualified and defective aggregates, which would otherwise be impossible to clean up.

[0009] Furthermore, both the first and second asphalt storage areas are roofed and divided into several independent storage silos by partition walls. Different specifications of asphalt and aggregates are stored in different silos. The partition walls are 8 meters high, and the floors of the independent storage silos are hardened with concrete. The roof effectively prevents dust generated when raw materials fall into the storage silos by gravity through the belt conveyor system from spreading everywhere, thus controlling dust in a relatively enclosed space as much as possible; it also prevents raw materials and aggregates from getting damp, which would affect production quality, and reduces dust pollution; the separate storage of asphalt and aggregates of different specifications facilitates management and allocation, and avoids material mixing; the independent storage silos can be equipped with uniform identification signs indicating material name, specifications, manufacturer, arrival date, etc., for easy traceability and management; the hardened concrete floor effectively prevents uneven settlement in the storage silo area due to long-term storage of heavy objects.

[0010] Furthermore, the width between the first and second asphalt silo areas is 6m. This design is a key feature of this invention. In many existing asphalt mixing plants, the passage between the two asphalt silo areas is too narrow, only allowing one transport vehicle to pass at a time. The width designed in this invention allows two transport vehicles to travel in both directions. (If the automatic unloading system malfunctions, the passage can be used to drive the truck into the silo for unloading. At the same time, if there is substandard material, the loader and the truck can simultaneously remove the substandard material, avoiding waiting and scheduling time when vehicles meet, and significantly improving transportation efficiency.)

[0011] Furthermore, at least one material conveying port is located at the center of the independent silo floor for downward material transport. This port is connected to the mixing plant system via a belt conveyor, transporting the material from the independent silo to the mixing plant system for the next process. This design significantly reduces material transfer steps, avoiding efficiency losses caused by manual operation or intermediate transfer equipment. The automated conveying system reduces reliance on manual operation, lowering labor intensity and labor costs.

[0012] Furthermore, the water-stabilized material storage area includes a first water-stabilized material storage area and a second water-stabilized material storage area set up one after the other. The first water-stabilized material storage area and the second water-stabilized material storage area are arranged one after the other in the entire site. The first asphalt material storage area is adjacent to the water-stabilized production area. Both the first water-stabilized material storage area and the second water-stabilized material storage area have roofs and are divided into several independent water-stabilized material storage areas by partition walls. At least one water-stabilized material conveying port for downward material conveying is set at the center of the ground of each independent water-stabilized material storage area. The water-stabilized material conveying port is connected to the water-stabilized production area through a belt conveyor.

[0013] Water-stabilized soil, also known as cement-stabilized crushed stone, is a building material used for road base or subbase layers. It is produced by mixing cement, water, and aggregates (such as crushed stone and gravel) in a specific ratio, forming a base material with density, water resistance, and durability. Although asphalt mixing plants are primarily used to produce asphalt mixtures, in road construction, water-stabilized materials are typically used for the road base layer, while asphalt mixtures are used for the surface layer. Therefore, the production and use of water-stabilized materials are closely related to the function of asphalt mixing plants, but they belong to different production stages. In this invention, the overall spatial layout includes a water-stabilized material storage area and a water-stabilized production area. The arrangement of these areas organically combines the production of cement-stabilized soil with the production of asphalt mixtures, forming a complete production system for road base and surface layer materials. This layout makes the storage, transportation, and mixing of raw materials more seamless, reduces material transfer in intermediate stages, and improves overall production efficiency.

[0014] Furthermore, the crushing production area is equipped with crushing and screening equipment. Milled material from the milling stockpile is transported to the crushing production area for crushing and screening to form aggregates of different specifications. The milling stockpile serves as a temporary storage area for waste asphalt pavement. Through equipment such as double-roll crushers and vibrating screens in the crushing production area, the milling material can be crushed and screened into recycled aggregates of different particle sizes (such as 0-5mm and 5-10mm gradations), which can be directly used in the production of recycled asphalt mixtures. This layout, through the resource recycling chain (milling stockpile → crushing and screening → recycled aggregate → mixing production) and the coupling of spatial functions (adjacent to the crushing area and stockpile, direct transport of recycled material to the mixing plant), achieves multi-objective optimization of resource utilization, environmental compliance, and cost control.

[0015] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows:

[0016] (1) The present invention divides the raw material storage into an asphalt storage area, a water-stabilized storage area and a milling material storage yard. At the same time, the asphalt storage area, the water-stabilized storage area and the milling material storage yard are further divided into multiple independent storage silos by the roof, partition walls and other means, so as to strictly store materials of different specifications and types separately, eliminate the gradation deviation caused by particle size mixing, and avoid raw material loss and negative impact on asphalt quality.

[0017] (2) The mixing plant system in this invention is equipped with a 2000-type asphalt production equipment and a 4000-type asphalt production equipment. By reasonably selecting the equipment model, the needs of different projects can be better met, while optimizing production costs and efficiency.

[0018] (3) In this invention, the asphalt storage area is arranged in a front-to-back manner, which can significantly improve production efficiency, optimize site layout, reduce environmental impact, and enhance production flexibility and economic benefits.

[0019] (4) In this invention, the asphalt storage area is designed with a canopy, independent storage silos, partition walls, etc., which not only optimizes material storage and management, but also improves environmental performance and overall site stability.

[0020] (5) The present invention has a 6-meter-wide passage between the two asphalt silos. This design not only improves transportation efficiency and site utilization, but also significantly enhances safety and reduces operating costs. It is an important optimization direction in the construction of modern asphalt mixing plants.

[0021] (6) The present invention arranges a water-stabilized production area, a water-stabilized material silo area, a milling material stockpile and a crushing production area in the entire spatial layout, realizing multi-objective optimization of resource utilization, environmental protection compliance and cost control. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0023] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments.

[0024] This embodiment is located at No. 1, Jingjiu Road, Jingqiao Town, Lishui District, Nanjing City, Jiangsu Province, covering an area of ​​42.9 acres, with a total investment of 226 million yuan.

[0025] like Figure 1 The spatial layout of the road construction material production base shown includes a production area, an aggregate storage area, and a command center. The production area includes a mixing plant system 1, a water-stabilized material production area 2, and a crushing production area 3. The aggregate storage area includes an asphalt silo area 4, a water-stabilized material silo area 5, and a milled material storage yard 6. The command center 7 is located between the mixing plant system 1 and the asphalt silo area 4.

[0026] The mixing plant system is located on the east side of the site. It includes one 2000-type asphalt production unit (101) and one 4000-type asphalt production unit (102), arranged side-by-side with the asphalt storage area. In addition to the two asphalt production units, the mixing plant system also includes asphalt storage tanks and other supporting facilities.

[0027] An asphalt storage area 4 is located on the west side of the mixing plant system. This area includes a first asphalt storage area 401 and a second asphalt storage area 402, arranged front-to-back within the site. The first asphalt storage area 401 is adjacent to the mixing plant system. Both areas have roofs and are divided into seven independent storage bins by partition walls. Different bins store asphalt and aggregates of different specifications. The partition walls are 8 meters high, and the floors of the independent storage bins are hardened with concrete. The width between the first and second asphalt storage areas is 6 meters. Two downward material conveying inlets 403 are located at the center of each independent storage bin's floor. These inlets are connected to the mixing plant system via belt conveyors, transporting the materials from the independent bins to the mixing plant system for the next processing step. In this embodiment, the first asphalt storage area 401 is set as the asphalt inspection area, which contains asphalt aggregate that has not yet been tested, and the second asphalt storage area 402 is set as the asphalt inspection area, which contains asphalt aggregate that has already been tested.

[0028] A water-stabilized material storage area 5 is located on the south side of the asphalt storage area, and a water-stabilized material production area 2 is located on the southwest side adjacent to the water-stabilized material storage area. The water-stabilized material storage area 5 includes a first water-stabilized material storage area 501 and a second water-stabilized material storage area 502 arranged in a front-to-back manner throughout the site. The first asphalt storage area 401 is adjacent to the water-stabilized material production area 2. Both the first water-stabilized material storage area 501 and the second water-stabilized material storage area 502 have roofs and are divided into several independent water-stabilized material storage areas by partition walls. Two water-stabilized material conveying ports 503 are located at the center of the ground of each independent water-stabilized material storage area. The water-stabilized material conveying ports are connected to the water-stabilized material production area via belt conveyors. In this embodiment, the first water-stabilized material storage area 501 is designated as the water-stabilized material inspection area, and the second water-stabilized material storage area 502 is designated as the water-stabilized material waiting-to-be-inspected area.

[0029] A milling material stockpile 6 is located to the east of the water-stabilized production area, and a crushing production area 3 is located to the east of the milling material stockpile. Crushing and screening equipment is arranged in crushing production area 3. The milling material from the stockpile is transported to the crushing production area for crushing and screening to form aggregates of different specifications. The water-stabilized production area and the water-stabilized material silo area are adjacent, allowing for direct supply of raw materials and reducing transportation time. The milling material stockpile and crushing production area are located on the north side, facilitating the processing and reuse of recycled materials. The crushed materials can be stored or used nearby.

[0030] In this invention, the production areas (mixing plant system, water-stabilized material production area, crushing production area) and aggregate storage areas (asphalt / water-stabilized material silos, milled material stockpile) are closely adjacent according to the process flow. For example, asphalt silos are adjacent to the mixing plant system, and water-stabilized material silos are directly connected to the water-stabilized material production area, shortening the material transportation path and reducing transfer energy consumption. The crushing production area and milled material stockpile are arranged nearby to achieve rapid crushing, screening, and recycling of waste materials, reducing processing costs. The asphalt silo area is divided into an inspection area and an inspected area, and the water-stabilized material silo area is divided into an inspected area and an inspection area. Different specifications of materials are separated by physical partitions (8m high), combined with directional conveying through independent feed ports, to prevent uninspected materials from mixing into the qualified area and ensure material quality traceability. The design of the roof and hardened concrete floor further ensures that the materials are protected from moisture and pollution. The command center is located between the mixing plant system and the asphalt silo area, facilitating real-time monitoring of the entire process of raw material transportation, production processing, and quality inspection, improving emergency response and coordination efficiency.

[0031] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The spatial layout structure of a road construction material production base, including a production area, a material storage area, and a command center; characterized in that: The production area includes a mixing plant system, a water-stabilized material production area, and a crushing production area. The aggregate storage area includes an asphalt silo area, a water-stabilized material silo area, and a milled material stockpile. The mixing plant system is located on the east side of the entire site. The asphalt silo area is located to the west of the mixing plant system. The water-stabilized material silo area is located to the south of the asphalt silo area. The water-stabilized material production area is located to the southwest of the water-stabilized material silo area. The milled material stockpile is located to the east of the water-stabilized material production area. The crushing production area is located to the east of the milled material stockpile. A command center is located between the mixing plant system and the asphalt silo area.

2. The spatial layout structure of the road construction material production base according to claim 1, characterized in that: The mixing plant system includes a 2000-type asphalt production equipment and a 4000-type asphalt production equipment, which are arranged side by side with respect to the asphalt silo area.

3. The spatial layout structure of the road construction material production base according to claim 1, characterized in that: The asphalt storage area includes a first asphalt storage area and a second asphalt storage area, which are arranged one in front of the other in the entire site. The first asphalt storage area is adjacent to the mixing plant system.

4. The spatial layout structure of the road construction material production base according to claim 3, characterized in that: Both the first and second asphalt storage areas have roofs and are divided into several independent storage areas by partition walls. Different specifications of aggregates are stored in different storage areas. The partition walls are 8m high, and the floors of the independent storage areas are hardened with concrete.

5. The spatial layout structure of the road construction material production base according to claim 4, characterized in that: The width between the first asphalt storage area and the second asphalt storage area is 6m.

6. The spatial layout structure of the road construction material production base according to claim 4, characterized in that: At the center of the floor of the independent silo, there is at least one material conveying port for conveying materials downward. The material conveying port is connected to the mixing plant system via a belt conveyor to transport the materials in the independent silo to the mixing plant system for the next process.

7. The spatial layout structure of the road construction material production base according to claim 1, characterized in that: The water-stabilized material storage area includes a first water-stabilized material storage area and a second water-stabilized material storage area arranged one behind the other in the entire site. The first asphalt storage area is adjacent to the water-stabilized production area. Both the first and second water-stabilized material storage areas have roofs and are divided into several independent water-stabilized material storage areas by partition walls. At least one water-stabilized material conveying port for downward material conveying is set at the center of the ground of each independent water-stabilized material storage area. The water-stabilized material conveying port is connected to the water-stabilized production area through a belt conveyor.

8. The spatial layout structure of the road construction material production base according to claim 1, characterized in that: The crushing production area is equipped with crushing and screening equipment. The milled material in the milling material stockpile is transported to the crushing production area for crushing and screening to form aggregates of different specifications.

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