System and method for synergistically treating construction waste by using cement kiln

Abstract

The invention discloses a system and a method for synergistically treating construction waste by using a cement kiln. The system comprises a cement kiln synergetic treatment system and a constructionwaste treatment system, wherein mainly aggregate obtained after construction waste regeneration is used as a cement raw material and is fed into a raw material mill in the cement kiln synergetic treatment system, screened residue soil is used as the cement raw material, and the construction waste treatment system mainly comprises a storage system, a screening system, an iron removal system, a crushing system and the like. According to the invention, by combining a construction waste treatment process and a cement production line, construction waste is treated through screening, classification,manual sorting, two-stage crushing, iron removal, dust removal and other processes, the sorted combustible materials (plastics, wood, paper, paperboards and the like) are conveyed into a waste incinerator, and the treated aggregate as a cement raw material is fed into a raw material mill; and the method and the system are suitable for national conditions of China, and are low in energy consumption, high in yield, scientific and reasonable.

Description

technical field [0001] The invention relates to the field of building material processing, in particular to a cement kiln co-processing construction waste system and method. Background technique [0002] my country produces a large amount of construction waste every year, accounting for more than 60% of the total waste. Most of the construction waste is piled up in the open air or landfilled without any treatment, which consumes a lot of land. The places where construction waste has been landfilled can never be recultivated, resulting in a serious waste of land resources. At the same time, problems such as dust, dust and sand flying in the process of clearing, transporting and stacking have caused serious environmental pollution. There are many ways to dispose of construction waste, such as landscaping, direct stacking, filling pits to create land, and resource utilization. Compared with other municipal wastes, construction waste has the characteristics of large amount, no...

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