Screening device for road asphalt recycling

Abstract

The invention relates to a screening device for road asphalt recycling. The screening device comprises supporting legs, a machining frame is installed on the supporting legs, feeding ports are formed in the upper portion and the lower portion of the machining frame, the lower end face of the machining frame is of a downward inclined structure from back to front, a discharging port is formed in the lower side of the front end of the machining frame, and a crushing mechanism and a screening mechanism are sequentially arranged in the interior of the machining frame from top to bottom. The screening device can solve the problems that in the existing road asphalt recycling process, recycled asphalt of a block structure needs to be manually crushed, the labor intensity of manual crushing of road asphalt blocks is high, dust generated during crushing breathes into the body and causes great harm to the human body, manual screening of the crushed asphalt is not thorough, the asphalt blocks which do not conform to specifications need to be crushed and processed in a reciprocating mode, and the operation is complex.

Description

technical field [0001] The invention relates to the related technical field of road asphalt recovery, in particular to a screening device for road asphalt recovery. Background technique [0002] Asphalt pavement is usually used as the pavement surface layer, which is directly affected by vehicle load and atmospheric factors. At the same time, the physical and mechanical properties of asphalt mixture are greatly affected by climate factors and time factors. To provide stable and durable service, the asphalt pavement needs to be maintained after long-term use, and the road asphalt needs to be recycled during the maintenance. When recycling the road asphalt, the asphalt pavement is divided into blocks and then crushed and screened. The road asphalt is processed to complete the recovery of asphalt. When the asphalt pavement is recycled, the specifications of the asphalt pavement material after crushing and screening affect the quality of asphalt recovery; [0003] However, the ...

AI Technical Summary

Problems solved by technology

[0003] However, the following problems exist in the recycling process of existing road asphalt. It is necessary to manually crush the recycled asphalt block structure. Manually crushing road asphalt blocks is labor-intensive, and the dust generated by the crushing is breathed into the body and is harmful to the human body. Manual screening of crushed asphalt is not thorough, and reciprocating crushing of asphalt blocks that do not meet the specifications is required, and the operation is complicated

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