Manufacturing method of sintering-process foamed microcrystalline material product

A production method and technology of microcrystalline materials, applied in the field of building materials, can solve the problem of no description of the control crystallization process, achieve good application prospects and practical value, reduce production costs, and promote the effect of bonding

Inactive Publication Date: 2014-12-24
李嘉洋 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its process of controlling crystallization is not described

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] 60kg of gold mine tailings, 10kg of glass-ceramic frit water crushed material, 24kg of nepheline, 5kg of soda ash, and 1.0kg of silicon carbide are mixed and dry-milled until the particle size of the powder is ≤120 mesh. Fill these processed batch materials into refractory containers, and then heat them to 1160°C at a heating rate of 2-4°C / min in the kiln for 40 minutes of heat preservation and foaming; then heat them at a temperature of 10°C / min The temperature is lowered to 950°C at a cooling rate of 1°C / min, then to 550°C at a cooling rate of 1°C / min, and finally to room temperature at a cooling rate of 1-3°C / min.

[0035] The obtained product has an apparent density of 310g / m 3 , the compressive strength is 3.0Mpa, and the thermal conductivity is ≤0.10w / m.k. Finished products cut into standard sizes are packaged for storage.

example 2

[0037] 50kg of fly ash, 20kg of glass-ceramic frit water scrap, 25kg of quartz sand, 4kg of soda ash, and 1.0kg of silicon carbide are mixed and dry-milled until the particle size of the powder is ≤120 mesh. Fill the processed batch material in a refractory container, and then heat it to 1150°C in the kiln at a heating rate of 2-4°C / min for 40 minutes; then heat it at 10°C / min Reduce the temperature to 950°C at a cooling rate of 1 min, then drop the temperature to 550 °C at a cooling rate of 1 °C / min, and finally lower the temperature to room temperature at a cooling rate of 1 to 3 °C / min, and leave the furnace.

[0038] The obtained product has an apparent density of 230g / m 3 , the compressive strength is 2.0Mpa, and the thermal conductivity is ≤0.08w / m.k. Finished products cut into standard sizes are packaged for storage.

example 3

[0040] 50kg of coal gangue, 25kg of glass-ceramic frit water crushed material, 24kg of albite feldspar, and 1.0kg of silicon carbide are mixed and dry-milled until the particle size of the powder material is ≤120 mesh. Fill the processed batch material in a refractory container, and then heat it to 1170°C in the kiln at a heating rate of 2-4°C / min for foaming. The holding time is 40 minutes; Reduce the temperature to 950°C at a cooling rate of 1 min, then drop the temperature to 550 °C at a cooling rate of 1 °C / min, and finally lower the temperature to room temperature at a cooling rate of 1 to 3 °C / min, and leave the furnace.

[0041] The obtained product has an apparent density of 280g / m 3 , the compressive strength is 2.8Mpa, and the thermal conductivity is ≤0.09w / m.k. Finished products cut into standard sizes are packaged for storage.

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Abstract

The invention relates to a manufacturing method of a sintering-process foamed microcrystalline material product. The method is technically characterized in that the sintering-process foamed microcrystalline material product is mainly prepared from inorganic nonmetallic solid waste and mixed with a nucleator-containing microcrystalline glass fusion cake water-pulverized material and other additive components. In the production process, a mixture containing the nucleator and foaming agent is firstly prepared by mix grinding, high-temperature foaming is performed in the firing process, and the crystallization of the glass phase in the product is controlled by regulating the cooling curve, thereby greatly lowering the residual glass phase in the sintering-process foamed microcrystalline material; and thus, the material product has sufficient strength. The sintering-process foamed microcrystalline material has the characteristics of light weight, heat insulation, noise absorption, high strength and the like, can be widely used for thermal insulation of architectural walls and industrial equipment, and can implement industrialized production.

Description

Technical field: [0001] The invention belongs to the field of building materials, and in particular relates to a method for manufacturing foamed microcrystalline material products by a sintering method by using inorganic non-metallic solid waste. Background technique: [0002] Due to the characteristics of non-combustibility and heat preservation, inorganic foamed microcrystalline materials have broad application prospects in the field of building energy conservation. [0003] Since the invention of the crystal, there have been a large number of open technologies and patented technologies for foamed glass, mainly utilizing glass foam to manufacture light-weight thermal insulation materials, and its foaming process is the basis of the present invention. [0004] The sintering method of foamed ceramics is to introduce a large number of glass phases into the ceramic ingredients, and form a thermal insulation material with a crystal phase and a glass phase through the glass phas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C11/00C03C10/00
Inventor 李嘉洋刘鹏李晓明翟勇刘颖李佳
Owner 李嘉洋
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