Asphalt Pavement reclaim device and method

Abstract

The invention discloses an Asphalt Pavement reclaim device and method. The reclaim method is characterized in that primary materials and reclaimed materials are fed into a primary drying drum and a reclaimed drying drum respectively, the primary materials are subjected to heating and drying treatment by a combustor, and the dried and heated primary materials enter a heated primary material bin through a primary material vibrating screen; hot air in the primary drying drum enters the reclaimed drying drum through a transition chamber to heat and dry the reclaimed materials, and the dried and heated reclaimed materials are switched to enter two heated reclaimed material temporary storage stock bins through a reclaimed material distribution mechanism of the transition chamber; reclaiming agents are added into the two heated reclaimed material temporary storage stock bins through a reclaiming agent adding device; and the heated primary materials, the heated reclaimed materials, asphalt andmineral powder are fed into a primary material metering hopper, a reclaimed material metering hopper, an asphalt metering cylinder, and a mineral powder metering hopper to weigh and meter respectively, the various metered raw materials are dropped into a stirring cylinder correspondingly, and are fully stirred and mixed to form a qualified Reclaimed Asphalt Pavement with strict grading. The Asphalt Pavement reclaim device and method has the advantage of saving energy and being green and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of asphalt mixture mixing, and in particular relates to an asphalt mixture recycling equipment and method. Background technique [0002] With the development of asphalt pavement projects in China, most of the asphalt pavements that were built and opened to traffic in the early stage have entered the stage of major and medium repairs, and the resulting waste asphalt mixture (Reclaimed Asphalt Pavement, or RAP) is increasing year by year. As China's asphalt pavement regeneration technology started late, the policy promotion is not strong, and the current regeneration process is gradually taking shape. At present, there are two application forms of thermal regeneration technology commonly used in China: one is the in-situ type, and the other is the factory-mixed type. In-situ thermal regeneration equipment is also called regenerative train. Its characteristic is that it can regenerate the road surface at a fas...

AI Technical Summary

Problems solved by technology

All traditional mixing equipment on the market uses double drying drums, each drum is equipped with its own burner to heat the raw material and recycled material separately; it goes without saying that the operation of double burners is energy-intensive, not only Lead to a large consumption of fuel and electricity, and lead to more exhaust emissions

Images