Waste asphalt pavement material separation and regeneration treatment system and processing technology thereof

Abstract

The invention discloses a waste asphalt pavement material separation and regeneration treatment system and a processing technology thereof, and relates to the technical field of old asphalt treatment.According to the key points of the technical scheme, the waste asphalt pavement material separation and regeneration treatment system includes crushing equipment, coarse stripping equipment, screening equipment, fine stripping equipment, drying equipment, fine grinding equipment and a conveying device, wherein a first high-pressure water sprayer is arranged above the coarse stripping equipment, adischarge port of the fine stripping equipment is connected with a feed port of a vibrating screen, the fine grinding equipment includes a shell, a central shaft arranged in the shell, a motor driving the central shaft to rotate and a plurality of hammers fixedly connected with the central shaft, the conveying device includes a driving roller, a driven roller, a driving motor driving the drivingroller to rotate and a transmission belt arranged on the outer surface of the driving roller and the driven roller in sleeving and interference fit modes. The advantages that the utilization efficiency of the waste asphalt pavement materials is improved, the cost of recycling is reduced, and the application scope is expanded are achieved.

Description

technical field [0001] The invention relates to the technical field of old asphalt treatment, more specifically, it relates to a waste and old asphalt pavement material separation regeneration treatment system and its processing technology. Background technique [0002] As of the end of 2015, the mileage of expressways in my country has reached 120,000 kilometers, and the total mileage of national highways has reached more than 4 million kilometers. Most of the high-grade highways in my country adopt asphalt pavement structure, and the design life is generally 12 to 15 years, and a major repair is usually required every 10 years or so. According to this calculation, 6,000-7,000 kilometers of expressways in my country need to be overhauled every year, and an average of nearly 40 million tons of waste asphalt pavement materials are produced every year. The stacking of waste asphalt pavement materials not only takes up a lot of land resources, but also causes serious environme...

AI Technical Summary

Problems solved by technology

Although petroleum asphalt does not contain carcinogens, its chemical inertness makes it difficult to degrade, which will affect the ecology of landfills and their surroundings and the health of residents' food and drinking water in the long run

On the other hand, in many areas of our country, basalt, diabase, andesite and other stone materials suitable for laying high-grade asphalt pavement are also very scarce resources. In order to ensure the quality of the project, sometimes they have to be mined and transported hundreds of kilometers away It not only increases the unit price of stone materials, causing transportation safety hazards, but also causes environmental problems due to excessive development of stone resources

[0004] At present, domestic factory-mixed heat regeneration equipment is mainly forced intermittent regeneration mixing equipment, which adopts the second drying cylinder heating method, and most of them are imported products or technologies, with insufficient independent innovation

Images