Reclaimed material drying roller and reclaimed material drying method

Abstract

The invention relates to the technical field of drying rollers, and particularly relates to a reclaimed material drying roller and a reclaimed material drying method. The drying roller comprises a first roller body and a second roller body, the second roller body is divided into a material guiding area and a material mixing area, a discharging port is formed in the end of the material mixing area,material mixing blades capable of wrapping materials and conveying the materials towards the discharging port are arranged in the material mixing area, a fine aggregate feeding port is formed in thematerial guiding area, and material guiding blades for guiding fine aggregates into the material mixing blades are arranged in the material guiding area; and one end of the first roller body is provided with a coarse aggregate feeding port, the other end of the first roller body extends into the second roller body, and coarse aggregates rotate along with the first roller body, are conveyed towardsthe second roller body and are fed into a mixing area of the second roller body. By means of the structural design of the second roller body and the matched arrangement relation of the second rollerbody and the first roller body, the temperature of the fine aggregates rises quickly, a passing path of the fine aggregates in the second roller body is short, the fine aggregates are prevented from being bonded in the area, aging of asphalt in reclaimed materials is reduced, an equipment cleaning period is prolonged, and labor cost is saved.

Description

technical field [0001] The invention relates to the technical field of drying drums, in particular to a recycled material drying drum and a method for drying recycled materials. Background technique [0002] As more and more highways in the country enter the overhaul stage, a large amount of waste asphalt mixture will be produced, and the large amount of waste asphalt mixture can be recycled and used to bring very considerable economic and social benefits. Heating and drying is a necessary link in the recycling of waste asphalt mixture. Recycled materials are divided into fine material and coarse material. Coarse material heats up slowly and fine material heats up quickly. If drying and heating are carried out at the same time, the temperature of fine material will be too high and become sticky, which is easy to bond with the drying drum. In order to solve the above problems, the Chinese patent with the authorized announcement number CN 203440735U discloses a new type of re...

AI Technical Summary

Problems solved by technology

Recycled materials are divided into fine material and coarse material. Coarse material heats up slowly and fine material heats up quickly. If drying and heating are carried out at the same time, the temperature of fine material will be too high and become sticky, which is easy to bond with the drying drum.

In order to solve the above problems, the Chinese patent with the authorized announcement number CN 203440735U discloses a new type of regenerated heating and drying drum for old asphalt reclaimed materials. The feeding ring set in the middle of the drum is added to the drum for heating and drying. In this way, the coarse-grained recycled material is heated first and the fine-grained recycled material is heated later. Although the problem of fine-grained recycled material sticking to the drum at the front of the drum can be avoided, it is still It will stick to the drum at the back of the drum, and the fine material feed ring is prone to sticking and leakage problems, which also brings certain uncertainty to the normal and stable operation of the equipment

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