Cold-grinding sharp-turning hot-melting type separation and regeneration equipment and regeneration method for waste asphalt

Abstract

The invention discloses waste asphalt cold grinding sharp-turning hot melting type separation regeneration equipment which comprises a cold grinding mechanism and a hot melting mechanism, a material sieve is arranged at the outlet end of the cold grinding mechanism, an asphalt stone coating body and an asphalt sand coating body enter the hot melting mechanism, and stone, sand and asphalt are separated through a hot melting process; the cold grinding mechanism is provided with a surface dust removal cavity and an asphalt surface layer grinding cavity, and a dust suction joint is constructed on the surface dust removal cavity; according to the regeneration method, impurities, asphalt powder, stones, sand and liquid asphalt are separated in cooperation with regeneration equipment, and most of raw materials are provided for the subsequent asphalt regeneration process. Impurities on the surface of the waste asphalt are treated, the asphalt on the surface layer of the waste asphalt is ground into powder for subsequent utilization, an asphalt stone coating body and an asphalt sand coating body are separated in a hot melting mode, separation of liquid asphalt, stone and sand is achieved, and full utilization of the asphalt is achieved. The method is suitable for the technical field of waste asphalt recycling.

Description

technical field [0001] The invention belongs to the technical field of recycling waste asphalt, and in particular relates to a waste and old asphalt cold-grinding and rapid-turning hot-melt separation regeneration equipment and regeneration method. Background technique [0002] In the process of renovating and rebuilding old roads, a large amount of asphalt waste will be produced by digging the road surface. In order to avoid excessive waste of resources, the current method is to recycle these waste asphalt, and then crush and screen them in the The sieved asphalt is added to the regenerant for reuse, which makes the waste asphalt have a very high utilization value. However, the above-mentioned recycling methods are not suitable for asphalt pavement with added stones and sand, and it is difficult to separate waste asphalt from stones and sand for this part of asphalt recovery. Moreover, in the existing recycling process, since impurities such as dust on the surface of waste...

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Problems solved by technology

However, the above-mentioned recycling methods are not suitable for asphalt pavement with stones and sand added, and it is difficult to separate waste asphalt from stones and sand for this part of asphalt recycling

Moreover, in the existing recycling process, since impurities such as dust on the surface of waste asphalt are difficult to remove, generally no measures are taken to remove them, but these impurities will affect the performance of the regenerated asphalt, resulting in the refurbishment of the pavement. reduced structural strength

At the same time, the structure of the existing waste asphalt recycling and processing equipment is too complicated, and its operation difficulty and cost investment are huge, and the cost of subsequent equipment maintenance and the difficulty of disassembly and assembly are greatly increased.

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