Thermal regeneration combined production equipment for asphalt mixture

Abstract

The invention relates to the technical field of asphalt concrete processing equipment, in particular to thermal regeneration combined production equipment for an asphalt mixture. The thermal regeneration combined production equipment comprises a stirring machine, a new asphalt material processing system and a regenerated asphalt material processing system, and an asphalt conveying and metering mechanism, a mineral powder conveying and metering mechanism and a new material storage bin put asphalt, mineral powder and aggregates into a new material blending furnace for blending according to the proportions; the regenerated asphalt material processing system comprises a regenerated material conveying and metering mechanism, a regenerated material storage bin and a regenerated material blending furnace, and the new material blending furnace and the regenerated material blending furnace put a new material and a generated material into the stirring machine for blending and stirring according to the proportion. According to the thermal regeneration combined production equipment for the asphalt mixture, the new material and the regenerated material can be heated separately, the temperature of the mixture in the storage process can be precisely controlled, uniformity of a mixture of a fine-particle old asphalt mixture and asphalt is improved, the heat exchange efficiency between the fine-particle old asphalt mixture and asphalt is improved, and the new material and the regenerated material are mixed uniformly.

Description

technical field [0001] The invention relates to the technical field of asphalt concrete processing equipment, in particular to an asphalt mixture thermal regeneration combined production equipment. Background technique [0002] With the rapid development of my country's highway construction and the renovation and reconstruction of a large number of high-grade highway asphalt pavements, a large amount of waste asphalt milling materials have been produced. If these waste and old asphalt milling materials are discarded, on the one hand, it will cause environmental pollution. It is a waste of resources for a country where high-quality asphalt is extremely scarce. The recycling of asphalt pavement is to re-mix the old asphalt pavement with regenerant, new asphalt materials, new aggregates, etc. in a certain proportion after excavation, recycling, crushing, and screening, which can meet certain road use requirements. Performance and a complete set of processes for resurfacing. Re...

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Problems solved by technology

[0003] In the prior art, for example, an old asphalt mixture recycling device described in the Chinese Utility Model Patent Application No. 201520760858.8 includes a recycling hopper for recycling old asphalt and a recycling hoist for transporting old asphalt. The belt conveyor between the recycling hopper and the recycled material hoist, the outlet of the recycled material hoist is provided with a storage bin, the bottom of the storage bin is provided with a metering hopper, and the bottom of the metering hopper is provided with a The main mixing tank of the asphalt mixing plant, the old asphalt material can enter the main mixing tank and be mixed with the new hot aggregate and asphalt in the main mixing tank, the disadvantage is that the old material is easy to be heated unevenly, affect the final product quality

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