System and process for finely separating and recycling asphalt pavement milling material
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A fine separation and asphalt pavement technology, applied in roads, roads, road repairs, etc., can solve problems such as low quality of recycled materials, rough screening technology and crushing technology, and inability to fully utilize recycled materials for asphalt milling and planing materials.
Pending Publication Date: 2020-10-02
辽宁交投公路科技养护有限责任公司 +2
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Problems solved by technology
This solution has the following problems: the regeneration technology of the traditional method, the screening technology and the crushing technology are rough, and it is impossible to fully utilize the recycled asphalt milling material below 5mm, resulting in the problem of low quality of the recycled material. The purpose of the present invention is to provide A system and process for fine separation and reuse of asphalt pavement milling materials to solve the problems raised in the above technologies
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Embodiment 2
[0040] Example 2: see Figure 1-11 , the present invention provides another technical solution: a fine separation and reuse process of asphalt pavement milling material, the fine separation and reuse process of asphalt pavement milling material is based on the fine separation and reuse of asphalt pavement milling material described in claims 1 to 6 system, the asphalt pavement milling material fine separation reuse process includes:
[0041] The S1 raw material batching bin is used for batching the fine separation box, and the raw material batching bin is used to transport the raw materials to the inside of the fine separation box through the discharge barrel and the feeding hopper, so as to facilitate the fine separation process of the raw materials;
[0042] The S2 fine separation box finely separates the raw materials. The raw materials enter the fine separation box through the feed hopper. At this time, the movable baffle of the bulk material tray turns to the inner side t...
Embodiment 3
[0049] Example 3: See Figure 1-11 , the present invention provides a kind of technical scheme: adopt different fine separation parameters to finely separate asphalt pavement milling and planing reclaimed material (RAP), and the extraction and screening test results after separation are as follows:
[0050] When the processing parameter is 1,
[0051] The specifications of asphalt pavement milling and planing recycled materials (RAP) are between 10-15mm, and the pass rates of raw materials passing through different sizes of sieve holes are 19mm, 100%, 16mm, 99.1%, 13.2mm, 95%, 9.5mm, 38.3 %, 4.75mm, 13.5%, 2.36mm, 10.8%, 1.18mm, 9.1%, 0.6mm, 7.3%, 0.3mm, 6.1%, 0.15mm, 5.1%, 0.0075mm, 4.1%, asphalt content is 3.01% ;
[0052] The specifications of asphalt pavement milling recycled material (RAP) are between 5-10mm, and the pass rate of raw materials passing through different sizes of sieve holes is 19mm, 100%, 16mm, 100%, 13.2mm, 100%, 9.5mm, 95.3 %, 4.75mm, 22.5%, 2.36mm, 1...
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Abstract
The invention discloses a system and a process for finely separating and recycling an asphalt pavement milling material. The system for finely separating and recycling the asphalt pavement milling material comprises a fine separation box and a first aggregate conveying device, a first aggregate conveying device is arranged at the lower end of the fine separation box, a first vibration screening box is arranged below one side of the first aggregate conveying device, a second aggregate conveying device and a sixth aggregate conveying device are arranged on one side of the first vibration screening box, and a second vibration screening box is arranged below one side of the second aggregate conveying device. The crushed raw materials leave the crushing cavity under the action of gravity and enter a discharging hopper of the lower machine body to be discharged; an upper beating protective plate and a lower beating protective plate are installed on the wall of the crushing cavity to protectthe machine shell from being impacted and abraded, and the characteristic is that raw materials are accelerated through the throwing wheel during acceleration, and about half of particles are ejectedout through energy obtained in the throwing wheel device and then impacted and rubbed with falling raw materials and linings or impacted with the raw materials at a high speed to be crushed. The system is simple in structure, high in practicability, low in cost and capable of being used and popularized.
Description
technical field [0001] The invention relates to the technical field of asphalt recovery, in particular to a system and process for finely separating and reusing asphalt pavement milling materials. Background technique [0002] At present, domestic recycling of asphalt pavement waste is mainly used in the middle and lower layers or base layers of ordinary roads and municipal roads, and the utilization rate of recycled asphalt mixture (RAP) is very low. As my country's highways enter the peak period of maintenance, hundreds of millions of tons of waste asphalt recycled materials produced every year have not been fully utilized, failing to achieve the goals of saving resources, reducing environmental pollution and public nuisance, and enhancing public economic benefits. In view of the low utilization rate and large variability of RAP, it is particularly important to study the fine separation and screening pretreatment of RAP. After fine separation and pretreatment, RAP has bett...
Claims
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Application Information
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