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Method for preparing cementing material by using washed waste incineration fly ash and application of cementing material

A technology for waste incineration fly ash and cementitious materials, applied in the field of building materials, can solve problems such as environmental hazards, environmental and human activities, and achieve the advantages of reducing the use of cement, good compressive and flexural strength, and saving treatment and disposal costs. Effect

Pending Publication Date: 2022-03-11
SHENZHEN ENERGY ENVIRONMENT ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the fly ash produced by municipal solid waste incineration does not take reasonable and effective harmless disposal, it will have a serious impact on the environment and human activities, especially the heavy metals in the fly ash will bring serious harm to the environment

Method used

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  • Method for preparing cementing material by using washed waste incineration fly ash and application of cementing material
  • Method for preparing cementing material by using washed waste incineration fly ash and application of cementing material
  • Method for preparing cementing material by using washed waste incineration fly ash and application of cementing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of utilizes washing rubbish to incinerate fly ash to prepare cementitious material, it is characterized in that, comprises the following steps:

[0034] (1) Carry out washing pretreatment to fly ash to remove chlorine ion; The parts by weight of each main component of washing waste incineration fly ash are as follows: CaO 70 parts, SiO 2 9 servings, SO 3 5 parts, MgO 2 parts, ZnO 2 parts, Al 2 o 3 1 Fe 2 o 3 1 part, 1 part containing chloride ion substances.

[0035] The water washing treatment is carried out in a water washing device. The water washing process conditions are a solid-to-liquid ratio of 1:10, a water washing time of 10 minutes, and an oscillation rate of 110 r / min. The chloride ion content of the fly ash after water washing is less than 2%.

[0036] (2) dehydrating and drying the mixture treated in step (1);

[0037] (3) The dry washed fly ash in the step (2) is broken and set aside;

[0038] (4) Prepare cementitious material with the ...

Embodiment 2

[0040] The utility model relates to a cementitious material which utilizes water-washed garbage incineration fly ash for the preparation of mortar.

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Abstract

The invention relates to a method for preparing a cementing material by using washed waste incineration fly ash and application. The method comprises the following steps: washing, drying and crushing the municipal waste incineration fly ash, and mixing with cement to prepare the cementing material. According to the method, the municipal solid waste incineration fly ash can be effectively utilized to prepare the cementing material, the utilization rate of the municipal solid waste incineration fly ash is increased, the preparation method is simple and good in safety and environment friendliness, certain economic benefits are achieved, and harmless and resource utilization of the fly ash is achieved.

Description

technical field [0001] The invention relates to the field of building materials, especially cementitious materials. Background technique [0002] The incineration method can effectively realize the reduction and recycling of domestic waste, and reduce the harm of waste to the environment. It is one of the most promising methods in domestic and foreign waste disposal methods. Domestic waste incineration fly ash contains a variety of heavy metals, and because the leaching concentration of some heavy metals exceeds the national identification standard for leaching toxicity of solid waste, it is considered as hazardous solid waste. [0003] With the improvement of living standards and the development of social economy, the composition and performance of municipal solid waste will become more complex. Therefore, if the fly ash produced by municipal solid waste incineration does not take reasonable and effective harmless disposal, it will have a serious impact on the environment ...

Claims

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Application Information

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IPC IPC(8): C04B7/28C04B28/04
CPCC04B7/28C04B28/04C04B2111/00017C04B2201/50C04B14/06Y02P40/10
Inventor 钟日钢高子涵曾靖淞冉从华黄俊宾刘清才吴泓利范红照吴浩刘维燥曹俊李中正刘艺蒋建华杨剑
Owner SHENZHEN ENERGY ENVIRONMENT ENG
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