Old asphalt material crushing and recycling device and method

Abstract

The invention provides an old asphalt material crushing and recycling device and method. The old asphalt material crushing and recycling device comprises a feeding conveyor, an old asphalt material crushing separator, a screening machine, discharging conveyors, setting ponds, sewage sucking pumps and a sand deposition pond, the feeding conveyor, the old asphalt material crushing separator and thescreening machine are sequentially connected, one end of the screening machine is sequentially connected with the multiple setting ponds, and the other end of the screening machine is connected with the multiple discharging conveyors. Each setting pond is connected with the sand deposition pond through the corresponding sewage sucking pump. The old asphalt material crushing and recycling device and method have the advantages that the production technique is simple, and the production efficiency is high; the old asphalt material recovering and using efficiency is high, on the one hand, materialwaste can be reduced, on the other hand, the cost can be reduced, and the investment income of construction funds is increased; through recovering and using of gravel aggregate, the requirement of social sustainable development is met, and the problem that the gravel aggregate is in shortage due to continuous mountain excavation for stone taking can be effectively solved; and asphalt is collectedand reused, and environment pollution can be reduced.

Description

technical field [0001] The invention belongs to the field of road and bridge construction, and relates to equipment for crushing and recycling old asphalt materials and a method thereof. Background technique [0002] While the road construction industry is booming, due to the continuous growth of traffic volume and the significant increase of axle load, the roads have been significantly damaged. Many high-grade roads built in my country have been severely worn under the action of huge stress, with rutting and surface aggregates. Insufficient and structural damage and other damages, my country's highway infrastructure has changed from a construction-based peak period to a construction and maintenance peak period. Among the high-level and sub-high-level roads that have been built in my country, according to the design of these roads In recent years, a large number of roads need to be renovated every year, and a large number of old roads need to be milled and then paved with new ...

AI Technical Summary

Problems solved by technology

This method does not maximize the recycling of old asphalt materials

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