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Comprehensive utilization of construction waste

A construction waste and glass technology, applied in the direction of construction waste recycling, recycling technology, solid waste removal, etc., can solve hidden dangers, pollute the environment, and endanger the daily life of surrounding residents, etc., to reduce pollution and make the production process simple and easy Effect

Inactive Publication Date: 2014-02-12
GUILIN YAXIN DECORATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, these garbage not only occupy a large amount of land, but also the construction coatings, paints, plastics, etc. in the construction waste are polymer materials that are difficult to degrade, and contain harmful heavy metal elements, which will destroy the soil structure and cause surface subsidence, and also cause serious pollution. environment, directly endangering the daily life of surrounding residents and bringing hidden dangers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The comprehensive utilization of construction waste, the specific operation process is as follows: after the construction waste is properly crushed, it is sorted by mechanical means, the reinforced concrete waste is broken down from large pieces into small pieces, and the steel bars adhered to the concrete are peeled off and sorted out sequentially. Metals, plastics, glass, etc. are classified and placed, and metal wastes can be returned to the furnace to manufacture steel products of various specifications; plastics and glass wastes are recycled and reprocessed to produce recycled glass or decorative profiles Put into use; pour the above-mentioned garbage such as concrete blocks, wall tiles, and floor tiles into the incinerator for incineration, and the heat energy obtained is used for generator power generation; the dust after incineration is sieved to separate powder and stone particles ; After the obtained stone particles are washed and screened, they are sorted and ...

Embodiment 2

[0018] The comprehensive utilization of construction waste, the specific operation process is as follows: After the construction waste is properly crushed, it is manually sorted, the reinforced concrete waste is broken down from large pieces into small pieces, and the steel bars that are adhered to the concrete are peeled off and sorted out in turn. Metals, plastics, glass, etc. are classified and placed, and metal wastes can be returned to the furnace to manufacture steel products of various specifications; plastics and glass wastes are recycled and reprocessed into recycled glass or decorative profiles for use; Pour the concrete blocks, wall bricks, floor bricks and other garbage that have been removed from the above into the incinerator for incineration, and the heat energy obtained is used for generator power generation; the dust after incineration is sieved to separate powder and stone particles; After being washed and screened, the gravel particles are sorted and placed f...

Embodiment 3

[0020] The comprehensive utilization of construction waste, the specific operation process is as follows: after the construction waste is properly crushed, it is sorted manually and mechanically, the reinforced concrete waste is broken down from large pieces into small pieces, and the steel bars adhered to the concrete are peeled off. Sorting metals, plastics, glass, etc. for classification and placement, the metal wastes can be returned to the furnace to make steel products of various specifications; the plastics and glass wastes can be recycled and processed into recycled glass or decorative profiles Put into use; pour the above-mentioned other types of garbage such as concrete blocks, wall tiles, and floor tiles into the incinerator for incineration, and the heat energy obtained is used for generator power generation; the dust after incineration is sieved to separate powder and stone particles ; After the obtained stone particles are washed and screened, they are sorted and ...

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Abstract

The invention discloses comprehensive utilization of construction waste. The comprehensive utilization is realized by the following steps: firstly, appropriately crushing the construction waste, selecting out metal, plastic and glass in the construction waste in a manual and / or mechanical mode, subsequently pouring the rest materials into a combustion furnace to be combusted, and applying the obtained heat energy to a generator for power generation; screening dust slag after combustion so as to separate a power material and stone grains; adding a curing agent into the obtained powder material, and performing ordinary treatment so as to prepare the material into cement; screening the obtained stone grains in a washing mode, and subsequently placing in different classes; feeding the metal waste which is obtained through separation into a furnace so as to be prepared into steel materials of different models; recycling and machining the plastic and glass waste obtained through separation into recycled glass or decorative materials. Therefore, the construction waste can be sufficiently and effectively utilized, and the pollution of the construction waste to the environment is reduced.

Description

technical field [0001] The invention relates to a method for recycling construction waste, in particular to comprehensive utilization of construction waste. Background technique [0002] With the acceleration of urban construction, a large number of old buildings have been demolished, and construction waste has gradually increased. In recent years, there is no unified and perfect construction waste disposal method in our country, and most construction waste is simply disposed of directly or landfilled. Therefore, these garbage not only occupy a large amount of land, but also the construction coatings, paints, plastics, etc. in the construction waste are polymer materials that are difficult to degrade, and contain harmful heavy metal elements, which will destroy the soil structure and cause surface subsidence, and also cause serious pollution. The environment directly endangers the daily life of the surrounding residents and brings hidden dangers. Therefore, developing a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/06C03C6/02C04B28/00C04B18/06B09B3/00
CPCY02W30/58Y02W30/91
Inventor 李嘉
Owner GUILIN YAXIN DECORATION ENG
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