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Method for manufacturing regenerated construction material by means of fine aggregate

A technology of fine aggregate and building materials, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve problems such as cost

Inactive Publication Date: 2016-05-18
YING CHENG ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned fine aggregate is also the product of the bottom slag after the industry spends a lot of money on it. It would be a pity if it is not properly utilized

Method used

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  • Method for manufacturing regenerated construction material by means of fine aggregate
  • Method for manufacturing regenerated construction material by means of fine aggregate
  • Method for manufacturing regenerated construction material by means of fine aggregate

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Embodiment Construction

[0008] The embodiment of the method for producing recycled building materials from bottom slag fine aggregates of the present invention includes the following steps: collecting the bottom slag of the incinerator and performing wet screening, magnetic separation, eddy current separation, stirring and washing, and separating the mud and sand, and collecting the bottom slag Fine aggregates with a particle size of less than 1mm.

[0009] Among them, the wet screening is carried out by installing a water supply unit in a trommel, and washing the bottom residue with a high-pressure water column while performing rolling screening in the trommel. The scouring method through the high-pressure water column can make the organic matter and chloride ions in the bottom slag dissolve in water and be taken away. At the same time, the high-pressure water injection can also flush the screen holes of the trommel screen to prevent the sieve holes from being blocked by the bottom slag and reduce th...

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Abstract

A method for manufacturing a regenerated construction material by means of fine aggregate comprises the following steps of performing slag collection on an incinerator, performing wet-type screening, magnetic selection, eddy current sorting and sand separator, and collecting fine aggregate of which the diameters of particles of the slag are smaller than 1mm; performing tempering on the fine aggregate, glass fibers and calcium / silicon additive, wherein the weight percent of the fine aggregate is 10-40%, the weight percent of glass fiber is 2-15% and the weight percent of the calcium / silicon additive is 50-80%; mixing the tempered fine aggregate with water for forming a mixture, and controlling ratio between water and solid within 1.35-1.55; and performing pressurizing on the mixture for forming a board, and performing high-pressure steam curing on the board. According to the method of the invention, the fine aggregate which is originally discarded after slag treatment is sufficiently utilized, and the regenerated construction material which accords with a standard is formed after tempering.

Description

technical field [0001] The invention relates to a method for manufacturing recycled building materials, in particular to a method for manufacturing recycled building materials with bottom slag fine aggregate. Background technique [0002] Garbage disposal is a major environmental issue faced by human beings after high industrialization and urbanization. Among the many garbage disposal methods, first using an incinerator to burn and incinerate the garbage and then dispose of it is a widely used garbage disposal method at present. Using an incinerator to dispose of garbage has at least the following advantages: (1) After the garbage is burned and incinerated, the volume of the garbage can be greatly reduced; (2) The substances harmful to the environment contained in the garbage can be incinerated (3) The combustion of the incinerator is carried out in a controlled environment, and the exhaust gas is also properly monitored and treated, which can reduce the harm to the human b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/10C04B14/42
CPCY02W30/91
Inventor 谢应得
Owner YING CHENG ENVIRONMENTAL TECH
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