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Method for producing alkaline residue ceramsite with high efficiency, waste utilization, low energy consumption and light weight

A technology with low energy consumption and ceramsite, which is applied in the field of building materials and can solve problems such as steel bar hazards

Inactive Publication Date: 2012-06-27
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem in the prior art that ceramsite is used in concrete to release chloride ions and cause harm to steel bars, thereby providing a high-efficiency, waste-saving, low-energy, and light-weight alkali-slag ceramsite manufacturing method

Method used

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  • Method for producing alkaline residue ceramsite with high efficiency, waste utilization, low energy consumption and light weight
  • Method for producing alkaline residue ceramsite with high efficiency, waste utilization, low energy consumption and light weight

Examples

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example 1

[0011] Example 1: The proportion of the occupying porous core layer is: the amount of alkali slag is 60wt%, the waste glass powder is 40wt%, and the polyphenylene particles are 0.02wt% of the total amount of alkali slag and waste glass powder; the proportion of the intermediate foam layer is: Waste glass is 60wt%, shale is 40wt%, carbon powder is 0.2wt% of the total waste glass powder and shale, methyl cellulose ether is 1wt% of the total waste glass powder and shale; the hard shell layer ratio is :The amount of waste glass powder is 10wt%, shale is 90wt%, boric acid is 3wt% of the total amount of waste glass powder and shale.

[0012] According to the above ratio, the crushed polyphenyl particles are first added to the interface agent to treat the surface to form a layer of film on the surface, then mix the alkali slag, waste glass powder and stir with water to pelletize into balls, and then the core layer formed The balls are placed in the ball forming tray containing the inter...

example 2

[0013] Example 2: The proportion of the occupying porous core layer is: the amount of alkali slag is 80% by weight, the waste glass powder is 20% by weight, and the polyphenylene particles are 0.04% by weight of the total amount of alkali slag and waste glass powder; the proportion of the intermediate foam layer is: 75wt% waste glass, 25wt% shale, carbon powder 0.3wt% of the total waste glass powder and shale, 2.5wt% methyl cellulose ether waste glass powder and shale; the hard shell layer ratio is : The amount of waste glass powder is 25wt%, shale is 75wt%, and boric acid is 4.5wt% of the total amount of waste glass powder and shale.

[0014] According to the above ratio, the crushed polystyrene particles are first added to the interface agent VAE emulsion to treat the surface to form a layer of film on the surface, and then mix the alkali slag, waste glass powder and add water to stir, granulate into balls, and then combine the resulting The core layer balls are placed in the b...

example 3

[0015] Example 3: The proportion of the occupying porous core layer is: the amount of alkali slag is 70wt%, the waste glass powder is 30wt%, and the polyphenylene particles are 0.03wt% of the total amount of alkali slag and waste glass powder; the proportion of the intermediate foam layer It is: 70wt% waste glass, 30wt% shale, carbon powder 0.3wt% of the total amount of waste glass powder and shale, 2wt% of the total amount of methyl cellulose ether waste glass powder and shale; hard shell ratio The amount of waste glass powder is 20wt%, shale is 80wt%, and boric acid is 4wt% of the total amount of waste glass powder and shale.

[0016] According to the above ratio, the crushed polystyrene particles are first added to the interface agent VAE emulsion to treat the surface to form a layer of film on the surface, and then mix the alkali slag and waste glass powder and stir with water to pelletize them into balls. The core layer balls are placed in the ball forming tray containing th...

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Abstract

The invention relates to a method for producing an alkaline residue ceramsite with high efficiency, waste utilization, low energy consumption and light weight, which belongs to the building material field. The ceramsite is in a three-layer composite structure, which comprises a site substitution porous core layer, an intermediate foaming layer and a hard shell layer, the site substitution porous core layer is characterized in that crushed poly benzene particles are mixed with alkaline residue, an interface agent and a VAE emulsion are added and stirred with water to forming balls, the intermediate foaming layer is composed of waste glass, shale, powdered carbon and methyl cellulose ether, the hard shell layer is composed of glass powder, shale and boric acid; the crushed poly benzene particles are added in the interface agent for treating the surface, then a layer of film is formed, alkaline residue, waste glass powder and water are mixed and stirred by adding water to form balls; then the balls are placed in a balling plate equipped with intermediate foaming layer siccative for warping, moisture spray is carried out on the surface of the wrapped balls, the balls are continuously placed in the balling disc equipped with the casing layer siccative to form ceramsite green compact with a three layers wrapping structure; the green compact is dried and roasted. The invention has the advantages of low energy consumption, and can better inhibit the dissolution of the chloride ions in alkaline residue.

Description

Technical field [0001] The invention belongs to the field of building materials, and relates to a method for manufacturing high-efficiency, low-energy consumption and light-weight alkali slag ceramsite. Background technique [0002] Soda slag is a kind of waste slag discharged from the process of producing soda ash by the ammonia-soda method in industry. Because of its high water content and a large amount of chloride, it becomes a kind of solid waste that is difficult to treat. A large amount of cultivated land has caused a lot of pollution to the environment. The comprehensive treatment of alkali slag has become a major scientific research topic in today's society. In the current situation of increasingly scarce natural resources, the use of alkali slag to make building materials has become a hot spot. However, the current application of alkali slag in sintered building materials is still in the research stage, and the dosage is very small. The main reason is that the release...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00B09B3/00
Inventor 严建华王倩倩容构华田英良秦魏刘大成
Owner BEIJING UNIV OF TECH
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