Method and system for treating construction waste

Abstract

The invention discloses a method for treating construction waste, comprising the following steps of: performing feeding and dregs pre-screening, primary crushing, secondary crushing and product screening on a material in sequence; performing sorting and impurity removing treatment on the material subjected to the primary crushing; performing material returning screening on the material subjected to the sorting and impurity removing treatment, performing particle shaping on the material screened down after the material returning screening treatment, and returning the oversize material to the secondary crushing; and combining the material subjected to the secondary crushing with the material in the sorting and impurity removing treatment. The system and method treating construction waste, provided by the invention, have high-efficiency and systemic sorting and impurity-removing functions; the generated construction waste recycled aggregate product meets the requirements of national standard 'recycled coarse aggregate for concrete'(GB / T 25177-2010), 'recycled fine aggregate for concrete and mortar' (GB / T 25176-2010) and other recycled aggregate product raw materials.

Description

technical field [0001] The invention relates to the field of resource disposal and comprehensive utilization of solid waste, in particular to a construction waste treatment method and system thereof. Background technique [0002] With the acceleration of urbanization in my country, the output of urban construction waste is also increasing rapidly, which has become a major obstacle restricting the sustainable development of cities. my country's construction waste is mainly produced in the fields of demolition and renovation of old houses, building construction, housing decoration and road and bridge construction. The generated construction waste has caused many problems such as occupying land, polluting water and soil, and affecting the city environment. Construction waste contains a large amount of building materials, and the output is large and sustainable. If the construction waste can be effectively recycled, it can not only effectively reduce the dependence on non-renew...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a processing method for construction waste, which solves the problems in the prior art that the labor load is high, it is difficult to realize the fine removal of construction waste, and the recycled aggregate products are difficult to meet the requirements of national standards.

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