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Method and system for treating construction waste

A technology of construction waste and treatment system, which is applied in the field of construction waste treatment methods and its systems, can solve problems such as difficulty in finely removing impurities in construction waste, high labor load intensity, and difficulty in meeting national standards for recycled aggregate products. Reduce the load of manual picking and the effect of system sorting and impurity removal

Inactive Publication Date: 2012-12-26
SHOUGANG CORPORATION
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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.

Method used

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  • Method and system for treating construction waste

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Embodiment Construction

[0010] see figure 1 , a method for processing construction waste provided by an embodiment of the present invention, comprising sequentially:

[0011] The first step is to carry out feeding and pre-screening of dregs, and set up pre-screening of dregs after feeding to realize pre-separation of dregs and avoid its impact on product quality;

[0012] The second step is primary crushing to achieve primary crushing of large particle size materials;

[0013] The third step is to sort and remove impurities. The materials are subjected to primary air separation, primary magnetic separation, manual selection, secondary air separation, and secondary magnetic separation, and the waste plastics in the primary crushed materials can be targeted. , waste fabric, waste paper, waste wood, waste metal, etc. are effectively separated and removed, and the scientific sorting process setting can not only reasonably reduce the load of manual sorting, but also achieve the effect of refined impurity...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/16
CPCY02W30/91
Inventor 马刚平梁勇王荣李博岳昌盛刘慧慧何亚斌魏振贵才艳芳孟立滨
Owner SHOUGANG CORPORATION
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