Reductive regeneration system and reductive regeneration process for pavement surface milling material

Abstract

The invention relates to a reductive regeneration system and a reductive regeneration process for a pavement surface milling material. At present, most road milling materials in China are used as stones and used with cement or directly abandoned, and asphalt is wasted, for mainly the processing technology and the processing equipment are not matched with the road milling materials. The system comprises a decomposition and dust removal unit and an asphalt material reduction unit, wherein the decomposition and dust removal unit comprises a feed hopper, a vibratory feeder, a crude stripper, a first conveyor belt, a fine stripper, a second conveyor belt, a classifier, a material-water separator and a plurality of third conveyor belts; the asphalt material reduction unit comprises a mixed hopper, an asphalt material recovery coating vibration reciprocating stirrer and a cold material conveyor belt; and the mixed hopper consists of a plurality of hoppers. The system ensures that the components of asphalt are not changed and the asphalt can be recycled, is considerable in benefit, advanced in process, reasonable in structure, clean in decomposition, uniform in recovery coating, low in investment, good in use performance, multi-purpose, suitable for cold and hot materials and net in suction and discharge, does not leave wastes, and has high production efficiency.

Description

technical field [0001] The invention relates to a system for reducing and regenerating pavement surface layer milling materials and a regenerating and regenerating process thereof. Background technique [0002] With the improvement of my country's economic situation, the mileage of high-grade highways has continued to increase, and a relatively complete highway and local road network has been built. Since 70% of the highways were built after the beginning of the new century, they have now entered the stage of repairing, In the renovation and overhaul stage, due to the unstable price of the international oil market, coupled with the limited development and utilization of domestic road raw materials, the cost of new construction and maintenance continues to rise, which is worth pondering by the transportation industry. [0003] It has been applied in road construction and maintenance. Although it has achieved certain results, there are several technical problems that have not b...

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Problems solved by technology

[0003] It has been applied in road construction and maintenance. Although it has achieved certain results, there are several technical problems that have not been overcome. In addition, the production equipment cannot keep up with it, which has always troubled road repairers to make full use of the road surface milling material. Because of the fabric we all know: the asphalt is imported, the stone is hundreds of miles away, and some places are transported to the construction site thousands of miles away. The technical indicators are high, and the local area may not have it. Substitute materials cannot be used or the price of substitute materials is high. , if the processing technology cannot keep up, it can only make the high-value surface material unable to be protected and utilized

[0004] At present, most of the highway milling materials in our country are mixed with stone and cement, or discarded directly, wasting asphalt. The main reason is that the processing technology and equipment cannot be matched.

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