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A recycling process for construction, demolition and decoration waste

A treatment process and waste technology, which is applied in the field of recycling treatment process of demolition and construction and decoration waste, can solve the problems of treatment and recycling, high equipment investment cost, complicated process flow, etc., and achieve high sorting Efficiency and resource utilization, saving floor space, and simplifying the effect of process flow

Active Publication Date: 2021-11-02
SHENZHEN WEIHAI BUILDING MATERIAL
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AI Technical Summary

Problems solved by technology

The composition and properties of demolition waste and decoration waste are different. If they are not classified and treated separately, it will cause trouble for their treatment and resource recycling.
[0005] Our country does not have the construction waste treatment technology that combines demolition and construction waste and decoration waste. Generally, a production line is set up for demolition and construction waste and decoration waste, which occupies a large area and requires high equipment investment costs. complex

Method used

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  • A recycling process for construction, demolition and decoration waste

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0032] like figure 1 As shown, a recycling process for demolition and decoration waste provided by the embodiment of the present invention includes the following steps:

[0033] S1, classification

[0034] Divide construction waste into two categories, demolition and construction waste and decoration waste, and stack them according to category.

[0035] S2, iron removal

[0036] The construction and demolition waste to be processed in step S1 is screened into two parts with a particle size D<100mm and a particle size D≥100mm through a vibrating feeder; the part with a particle size D<100mm is transported to the magnetic separation equipment by a belt conveyor Iron removal; the part with a particle size D≥100mm is transported to the primary crusher through a belt conveyor to...

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Abstract

A recycling process for demolition and decoration waste, including: dividing construction waste into two types: demolition and construction waste and decoration waste; separating iron-containing materials and light materials in the demolition and construction waste; Separation of miscellaneous soil, iron-containing materials and light materials in the decoration waste; combining the pre-treated demolition and construction waste and decoration waste, and crushing them into recycled aggregate; separating the iron-containing material in the recycled aggregate Separation of waste and light matter; sieve the processed recycled aggregate into recycled aggregate with different particle size ranges. Reasonably combine the separation process of construction and demolition waste and decoration waste. Firstly, the demolition and construction waste and decoration waste undergo different pretreatment processes to make the two properties and components the same, and then crush the two into recycled aggregates. , and finally select the recycled aggregates to make the recycled aggregates of high quality; it not only ensures high sorting efficiency and resource utilization of demolition and construction waste and decoration waste, but also reduces equipment investment and saves floor space.

Description

technical field [0001] The invention relates to the technical field of construction waste, in particular to a resource treatment process for demolition and decoration waste. Background technique [0002] Construction and demolition waste is a kind of construction waste with the highest aggregate content in concrete / mortar, and recycled aggregate can be used instead of natural aggregate after purification. The structure of Chinese houses is mainly divided into reinforced concrete structure, steel structure, brick-concrete structure and brick-wood structure. Composition. [0003] Decoration waste is different from other types of construction waste. It has the most complex composition and the highest impurity content. It has the characteristics of low bulk density, large volume, large floor area, and complex composition. Decoration waste does not belong to domestic waste, and is also different from ordinary demolition and construction waste. The pretreatment process of decora...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00B03B9/06
CPCB03B9/065B09B3/00B09B5/00Y02W30/52Y02W30/58
Inventor 李正茂李可梁伟
Owner SHENZHEN WEIHAI BUILDING MATERIAL
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